Client-side health checking support.

2 files changed, 299 insertions, 292 deletions

diff --git a/src/core/lib/transport/static_metadata.cc b/src/core/lib/transport/static_metadata.cc
index cdcb9a11d2..4ebe73f82a 100644
--- a/src/core/lib/transport/static_metadata.cc
+++ b/src/core/lib/transport/static_metadata.cc
@@ -63,51 +63,53 @@ static uint8_t g_bytes[] = {
     115, 115, 97,  103, 101, 95,  98,  121, 116, 101, 115, 47,  103, 114, 112,
     99,  46,  108, 98,  46,  118, 49,  46,  76,  111, 97,  100, 66,  97,  108,
     97,  110, 99,  101, 114, 47,  66,  97,  108, 97,  110, 99,  101, 76,  111,
-    97,  100, 100, 101, 102, 108, 97,  116, 101, 103, 122, 105, 112, 115, 116,
-    114, 101, 97,  109, 47,  103, 122, 105, 112, 71,  69,  84,  80,  79,  83,
-    84,  47,  47,  105, 110, 100, 101, 120, 46,  104, 116, 109, 108, 104, 116,
-    116, 112, 104, 116, 116, 112, 115, 50,  48,  48,  50,  48,  52,  50,  48,
-    54,  51,  48,  52,  52,  48,  48,  52,  48,  52,  53,  48,  48,  97,  99,
-    99,  101, 112, 116, 45,  99,  104, 97,  114, 115, 101, 116, 103, 122, 105,
-    112, 44,  32,  100, 101, 102, 108, 97,  116, 101, 97,  99,  99,  101, 112,
-    116, 45,  108, 97,  110, 103, 117, 97,  103, 101, 97,  99,  99,  101, 112,
-    116, 45,  114, 97,  110, 103, 101, 115, 97,  99,  99,  101, 112, 116, 97,
-    99,  99,  101, 115, 115, 45,  99,  111, 110, 116, 114, 111, 108, 45,  97,
-    108, 108, 111, 119, 45,  111, 114, 105, 103, 105, 110, 97,  103, 101, 97,
-    108, 108, 111, 119, 97,  117, 116, 104, 111, 114, 105, 122, 97,  116, 105,
-    111, 110, 99,  97,  99,  104, 101, 45,  99,  111, 110, 116, 114, 111, 108,
-    99,  111, 110, 116, 101, 110, 116, 45,  100, 105, 115, 112, 111, 115, 105,
-    116, 105, 111, 110, 99,  111, 110, 116, 101, 110, 116, 45,  108, 97,  110,
-    103, 117, 97,  103, 101, 99,  111, 110, 116, 101, 110, 116, 45,  108, 101,
-    110, 103, 116, 104, 99,  111, 110, 116, 101, 110, 116, 45,  108, 111, 99,
-    97,  116, 105, 111, 110, 99,  111, 110, 116, 101, 110, 116, 45,  114, 97,
-    110, 103, 101, 99,  111, 111, 107, 105, 101, 100, 97,  116, 101, 101, 116,
-    97,  103, 101, 120, 112, 101, 99,  116, 101, 120, 112, 105, 114, 101, 115,
-    102, 114, 111, 109, 105, 102, 45,  109, 97,  116, 99,  104, 105, 102, 45,
-    109, 111, 100, 105, 102, 105, 101, 100, 45,  115, 105, 110, 99,  101, 105,
-    102, 45,  110, 111, 110, 101, 45,  109, 97,  116, 99,  104, 105, 102, 45,
-    114, 97,  110, 103, 101, 105, 102, 45,  117, 110, 109, 111, 100, 105, 102,
-    105, 101, 100, 45,  115, 105, 110, 99,  101, 108, 97,  115, 116, 45,  109,
-    111, 100, 105, 102, 105, 101, 100, 108, 105, 110, 107, 108, 111, 99,  97,
-    116, 105, 111, 110, 109, 97,  120, 45,  102, 111, 114, 119, 97,  114, 100,
-    115, 112, 114, 111, 120, 121, 45,  97,  117, 116, 104, 101, 110, 116, 105,
-    99,  97,  116, 101, 112, 114, 111, 120, 121, 45,  97,  117, 116, 104, 111,
-    114, 105, 122, 97,  116, 105, 111, 110, 114, 97,  110, 103, 101, 114, 101,
-    102, 101, 114, 101, 114, 114, 101, 102, 114, 101, 115, 104, 114, 101, 116,
-    114, 121, 45,  97,  102, 116, 101, 114, 115, 101, 114, 118, 101, 114, 115,
-    101, 116, 45,  99,  111, 111, 107, 105, 101, 115, 116, 114, 105, 99,  116,
-    45,  116, 114, 97,  110, 115, 112, 111, 114, 116, 45,  115, 101, 99,  117,
-    114, 105, 116, 121, 116, 114, 97,  110, 115, 102, 101, 114, 45,  101, 110,
-    99,  111, 100, 105, 110, 103, 118, 97,  114, 121, 118, 105, 97,  119, 119,
-    119, 45,  97,  117, 116, 104, 101, 110, 116, 105, 99,  97,  116, 101, 48,
-    105, 100, 101, 110, 116, 105, 116, 121, 116, 114, 97,  105, 108, 101, 114,
-    115, 97,  112, 112, 108, 105, 99,  97,  116, 105, 111, 110, 47,  103, 114,
-    112, 99,  103, 114, 112, 99,  80,  85,  84,  108, 98,  45,  99,  111, 115,
-    116, 45,  98,  105, 110, 105, 100, 101, 110, 116, 105, 116, 121, 44,  100,
-    101, 102, 108, 97,  116, 101, 105, 100, 101, 110, 116, 105, 116, 121, 44,
-    103, 122, 105, 112, 100, 101, 102, 108, 97,  116, 101, 44,  103, 122, 105,
-    112, 105, 100, 101, 110, 116, 105, 116, 121, 44,  100, 101, 102, 108, 97,
-    116, 101, 44,  103, 122, 105, 112};
+    97,  100, 47,  103, 114, 112, 99,  46,  104, 101, 97,  108, 116, 104, 46,
+    118, 49,  46,  72,  101, 97,  108, 116, 104, 47,  87,  97,  116, 99,  104,
+    100, 101, 102, 108, 97,  116, 101, 103, 122, 105, 112, 115, 116, 114, 101,
+    97,  109, 47,  103, 122, 105, 112, 71,  69,  84,  80,  79,  83,  84,  47,
+    47,  105, 110, 100, 101, 120, 46,  104, 116, 109, 108, 104, 116, 116, 112,
+    104, 116, 116, 112, 115, 50,  48,  48,  50,  48,  52,  50,  48,  54,  51,
+    48,  52,  52,  48,  48,  52,  48,  52,  53,  48,  48,  97,  99,  99,  101,
+    112, 116, 45,  99,  104, 97,  114, 115, 101, 116, 103, 122, 105, 112, 44,
+    32,  100, 101, 102, 108, 97,  116, 101, 97,  99,  99,  101, 112, 116, 45,
+    108, 97,  110, 103, 117, 97,  103, 101, 97,  99,  99,  101, 112, 116, 45,
+    114, 97,  110, 103, 101, 115, 97,  99,  99,  101, 112, 116, 97,  99,  99,
+    101, 115, 115, 45,  99,  111, 110, 116, 114, 111, 108, 45,  97,  108, 108,
+    111, 119, 45,  111, 114, 105, 103, 105, 110, 97,  103, 101, 97,  108, 108,
+    111, 119, 97,  117, 116, 104, 111, 114, 105, 122, 97,  116, 105, 111, 110,
+    99,  97,  99,  104, 101, 45,  99,  111, 110, 116, 114, 111, 108, 99,  111,
+    110, 116, 101, 110, 116, 45,  100, 105, 115, 112, 111, 115, 105, 116, 105,
+    111, 110, 99,  111, 110, 116, 101, 110, 116, 45,  108, 97,  110, 103, 117,
+    97,  103, 101, 99,  111, 110, 116, 101, 110, 116, 45,  108, 101, 110, 103,
+    116, 104, 99,  111, 110, 116, 101, 110, 116, 45,  108, 111, 99,  97,  116,
+    105, 111, 110, 99,  111, 110, 116, 101, 110, 116, 45,  114, 97,  110, 103,
+    101, 99,  111, 111, 107, 105, 101, 100, 97,  116, 101, 101, 116, 97,  103,
+    101, 120, 112, 101, 99,  116, 101, 120, 112, 105, 114, 101, 115, 102, 114,
+    111, 109, 105, 102, 45,  109, 97,  116, 99,  104, 105, 102, 45,  109, 111,
+    100, 105, 102, 105, 101, 100, 45,  115, 105, 110, 99,  101, 105, 102, 45,
+    110, 111, 110, 101, 45,  109, 97,  116, 99,  104, 105, 102, 45,  114, 97,
+    110, 103, 101, 105, 102, 45,  117, 110, 109, 111, 100, 105, 102, 105, 101,
+    100, 45,  115, 105, 110, 99,  101, 108, 97,  115, 116, 45,  109, 111, 100,
+    105, 102, 105, 101, 100, 108, 105, 110, 107, 108, 111, 99,  97,  116, 105,
+    111, 110, 109, 97,  120, 45,  102, 111, 114, 119, 97,  114, 100, 115, 112,
+    114, 111, 120, 121, 45,  97,  117, 116, 104, 101, 110, 116, 105, 99,  97,
+    116, 101, 112, 114, 111, 120, 121, 45,  97,  117, 116, 104, 111, 114, 105,
+    122, 97,  116, 105, 111, 110, 114, 97,  110, 103, 101, 114, 101, 102, 101,
+    114, 101, 114, 114, 101, 102, 114, 101, 115, 104, 114, 101, 116, 114, 121,
+    45,  97,  102, 116, 101, 114, 115, 101, 114, 118, 101, 114, 115, 101, 116,
+    45,  99,  111, 111, 107, 105, 101, 115, 116, 114, 105, 99,  116, 45,  116,
+    114, 97,  110, 115, 112, 111, 114, 116, 45,  115, 101, 99,  117, 114, 105,
+    116, 121, 116, 114, 97,  110, 115, 102, 101, 114, 45,  101, 110, 99,  111,
+    100, 105, 110, 103, 118, 97,  114, 121, 118, 105, 97,  119, 119, 119, 45,
+    97,  117, 116, 104, 101, 110, 116, 105, 99,  97,  116, 101, 48,  105, 100,
+    101, 110, 116, 105, 116, 121, 116, 114, 97,  105, 108, 101, 114, 115, 97,
+    112, 112, 108, 105, 99,  97,  116, 105, 111, 110, 47,  103, 114, 112, 99,
+    103, 114, 112, 99,  80,  85,  84,  108, 98,  45,  99,  111, 115, 116, 45,
+    98,  105, 110, 105, 100, 101, 110, 116, 105, 116, 121, 44,  100, 101, 102,
+    108, 97,  116, 101, 105, 100, 101, 110, 116, 105, 116, 121, 44,  103, 122,
+    105, 112, 100, 101, 102, 108, 97,  116, 101, 44,  103, 122, 105, 112, 105,
+    100, 101, 110, 116, 105, 116, 121, 44,  100, 101, 102, 108, 97,  116, 101,
+    44,  103, 122, 105, 112};
 
 static void static_ref(void* unused) {}
 static void static_unref(void* unused) {}
@@ -224,6 +226,7 @@ grpc_slice_refcount grpc_static_metadata_refcounts[GRPC_STATIC_MDSTR_COUNT] = {
     {&grpc_static_metadata_vtable, &static_sub_refcnt},
     {&grpc_static_metadata_vtable, &static_sub_refcnt},
     {&grpc_static_metadata_vtable, &static_sub_refcnt},
+    {&grpc_static_metadata_vtable, &static_sub_refcnt},
 };
 
 const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT] = {
@@ -262,76 +265,77 @@ const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT] = {
     {&grpc_static_metadata_refcounts[32], {{g_bytes + 385, 30}}},
     {&grpc_static_metadata_refcounts[33], {{g_bytes + 415, 31}}},
     {&grpc_static_metadata_refcounts[34], {{g_bytes + 446, 36}}},
-    {&grpc_static_metadata_refcounts[35], {{g_bytes + 482, 7}}},
-    {&grpc_static_metadata_refcounts[36], {{g_bytes + 489, 4}}},
-    {&grpc_static_metadata_refcounts[37], {{g_bytes + 493, 11}}},
-    {&grpc_static_metadata_refcounts[38], {{g_bytes + 504, 3}}},
-    {&grpc_static_metadata_refcounts[39], {{g_bytes + 507, 4}}},
-    {&grpc_static_metadata_refcounts[40], {{g_bytes + 511, 1}}},
-    {&grpc_static_metadata_refcounts[41], {{g_bytes + 512, 11}}},
-    {&grpc_static_metadata_refcounts[42], {{g_bytes + 523, 4}}},
-    {&grpc_static_metadata_refcounts[43], {{g_bytes + 527, 5}}},
-    {&grpc_static_metadata_refcounts[44], {{g_bytes + 532, 3}}},
-    {&grpc_static_metadata_refcounts[45], {{g_bytes + 535, 3}}},
-    {&grpc_static_metadata_refcounts[46], {{g_bytes + 538, 3}}},
-    {&grpc_static_metadata_refcounts[47], {{g_bytes + 541, 3}}},
-    {&grpc_static_metadata_refcounts[48], {{g_bytes + 544, 3}}},
-    {&grpc_static_metadata_refcounts[49], {{g_bytes + 547, 3}}},
-    {&grpc_static_metadata_refcounts[50], {{g_bytes + 550, 3}}},
-    {&grpc_static_metadata_refcounts[51], {{g_bytes + 553, 14}}},
-    {&grpc_static_metadata_refcounts[52], {{g_bytes + 567, 13}}},
-    {&grpc_static_metadata_refcounts[53], {{g_bytes + 580, 15}}},
-    {&grpc_static_metadata_refcounts[54], {{g_bytes + 595, 13}}},
-    {&grpc_static_metadata_refcounts[55], {{g_bytes + 608, 6}}},
-    {&grpc_static_metadata_refcounts[56], {{g_bytes + 614, 27}}},
-    {&grpc_static_metadata_refcounts[57], {{g_bytes + 641, 3}}},
-    {&grpc_static_metadata_refcounts[58], {{g_bytes + 644, 5}}},
-    {&grpc_static_metadata_refcounts[59], {{g_bytes + 649, 13}}},
-    {&grpc_static_metadata_refcounts[60], {{g_bytes + 662, 13}}},
-    {&grpc_static_metadata_refcounts[61], {{g_bytes + 675, 19}}},
-    {&grpc_static_metadata_refcounts[62], {{g_bytes + 694, 16}}},
-    {&grpc_static_metadata_refcounts[63], {{g_bytes + 710, 14}}},
-    {&grpc_static_metadata_refcounts[64], {{g_bytes + 724, 16}}},
-    {&grpc_static_metadata_refcounts[65], {{g_bytes + 740, 13}}},
-    {&grpc_static_metadata_refcounts[66], {{g_bytes + 753, 6}}},
-    {&grpc_static_metadata_refcounts[67], {{g_bytes + 759, 4}}},
-    {&grpc_static_metadata_refcounts[68], {{g_bytes + 763, 4}}},
-    {&grpc_static_metadata_refcounts[69], {{g_bytes + 767, 6}}},
-    {&grpc_static_metadata_refcounts[70], {{g_bytes + 773, 7}}},
-    {&grpc_static_metadata_refcounts[71], {{g_bytes + 780, 4}}},
-    {&grpc_static_metadata_refcounts[72], {{g_bytes + 784, 8}}},
-    {&grpc_static_metadata_refcounts[73], {{g_bytes + 792, 17}}},
-    {&grpc_static_metadata_refcounts[74], {{g_bytes + 809, 13}}},
-    {&grpc_static_metadata_refcounts[75], {{g_bytes + 822, 8}}},
-    {&grpc_static_metadata_refcounts[76], {{g_bytes + 830, 19}}},
-    {&grpc_static_metadata_refcounts[77], {{g_bytes + 849, 13}}},
-    {&grpc_static_metadata_refcounts[78], {{g_bytes + 862, 4}}},
-    {&grpc_static_metadata_refcounts[79], {{g_bytes + 866, 8}}},
-    {&grpc_static_metadata_refcounts[80], {{g_bytes + 874, 12}}},
-    {&grpc_static_metadata_refcounts[81], {{g_bytes + 886, 18}}},
-    {&grpc_static_metadata_refcounts[82], {{g_bytes + 904, 19}}},
-    {&grpc_static_metadata_refcounts[83], {{g_bytes + 923, 5}}},
-    {&grpc_static_metadata_refcounts[84], {{g_bytes + 928, 7}}},
-    {&grpc_static_metadata_refcounts[85], {{g_bytes + 935, 7}}},
-    {&grpc_static_metadata_refcounts[86], {{g_bytes + 942, 11}}},
-    {&grpc_static_metadata_refcounts[87], {{g_bytes + 953, 6}}},
-    {&grpc_static_metadata_refcounts[88], {{g_bytes + 959, 10}}},
-    {&grpc_static_metadata_refcounts[89], {{g_bytes + 969, 25}}},
-    {&grpc_static_metadata_refcounts[90], {{g_bytes + 994, 17}}},
-    {&grpc_static_metadata_refcounts[91], {{g_bytes + 1011, 4}}},
-    {&grpc_static_metadata_refcounts[92], {{g_bytes + 1015, 3}}},
-    {&grpc_static_metadata_refcounts[93], {{g_bytes + 1018, 16}}},
-    {&grpc_static_metadata_refcounts[94], {{g_bytes + 1034, 1}}},
-    {&grpc_static_metadata_refcounts[95], {{g_bytes + 1035, 8}}},
-    {&grpc_static_metadata_refcounts[96], {{g_bytes + 1043, 8}}},
-    {&grpc_static_metadata_refcounts[97], {{g_bytes + 1051, 16}}},
-    {&grpc_static_metadata_refcounts[98], {{g_bytes + 1067, 4}}},
-    {&grpc_static_metadata_refcounts[99], {{g_bytes + 1071, 3}}},
-    {&grpc_static_metadata_refcounts[100], {{g_bytes + 1074, 11}}},
-    {&grpc_static_metadata_refcounts[101], {{g_bytes + 1085, 16}}},
-    {&grpc_static_metadata_refcounts[102], {{g_bytes + 1101, 13}}},
-    {&grpc_static_metadata_refcounts[103], {{g_bytes + 1114, 12}}},
-    {&grpc_static_metadata_refcounts[104], {{g_bytes + 1126, 21}}},
+    {&grpc_static_metadata_refcounts[35], {{g_bytes + 482, 28}}},
+    {&grpc_static_metadata_refcounts[36], {{g_bytes + 510, 7}}},
+    {&grpc_static_metadata_refcounts[37], {{g_bytes + 517, 4}}},
+    {&grpc_static_metadata_refcounts[38], {{g_bytes + 521, 11}}},
+    {&grpc_static_metadata_refcounts[39], {{g_bytes + 532, 3}}},
+    {&grpc_static_metadata_refcounts[40], {{g_bytes + 535, 4}}},
+    {&grpc_static_metadata_refcounts[41], {{g_bytes + 539, 1}}},
+    {&grpc_static_metadata_refcounts[42], {{g_bytes + 540, 11}}},
+    {&grpc_static_metadata_refcounts[43], {{g_bytes + 551, 4}}},
+    {&grpc_static_metadata_refcounts[44], {{g_bytes + 555, 5}}},
+    {&grpc_static_metadata_refcounts[45], {{g_bytes + 560, 3}}},
+    {&grpc_static_metadata_refcounts[46], {{g_bytes + 563, 3}}},
+    {&grpc_static_metadata_refcounts[47], {{g_bytes + 566, 3}}},
+    {&grpc_static_metadata_refcounts[48], {{g_bytes + 569, 3}}},
+    {&grpc_static_metadata_refcounts[49], {{g_bytes + 572, 3}}},
+    {&grpc_static_metadata_refcounts[50], {{g_bytes + 575, 3}}},
+    {&grpc_static_metadata_refcounts[51], {{g_bytes + 578, 3}}},
+    {&grpc_static_metadata_refcounts[52], {{g_bytes + 581, 14}}},
+    {&grpc_static_metadata_refcounts[53], {{g_bytes + 595, 13}}},
+    {&grpc_static_metadata_refcounts[54], {{g_bytes + 608, 15}}},
+    {&grpc_static_metadata_refcounts[55], {{g_bytes + 623, 13}}},
+    {&grpc_static_metadata_refcounts[56], {{g_bytes + 636, 6}}},
+    {&grpc_static_metadata_refcounts[57], {{g_bytes + 642, 27}}},
+    {&grpc_static_metadata_refcounts[58], {{g_bytes + 669, 3}}},
+    {&grpc_static_metadata_refcounts[59], {{g_bytes + 672, 5}}},
+    {&grpc_static_metadata_refcounts[60], {{g_bytes + 677, 13}}},
+    {&grpc_static_metadata_refcounts[61], {{g_bytes + 690, 13}}},
+    {&grpc_static_metadata_refcounts[62], {{g_bytes + 703, 19}}},
+    {&grpc_static_metadata_refcounts[63], {{g_bytes + 722, 16}}},
+    {&grpc_static_metadata_refcounts[64], {{g_bytes + 738, 14}}},
+    {&grpc_static_metadata_refcounts[65], {{g_bytes + 752, 16}}},
+    {&grpc_static_metadata_refcounts[66], {{g_bytes + 768, 13}}},
+    {&grpc_static_metadata_refcounts[67], {{g_bytes + 781, 6}}},
+    {&grpc_static_metadata_refcounts[68], {{g_bytes + 787, 4}}},
+    {&grpc_static_metadata_refcounts[69], {{g_bytes + 791, 4}}},
+    {&grpc_static_metadata_refcounts[70], {{g_bytes + 795, 6}}},
+    {&grpc_static_metadata_refcounts[71], {{g_bytes + 801, 7}}},
+    {&grpc_static_metadata_refcounts[72], {{g_bytes + 808, 4}}},
+    {&grpc_static_metadata_refcounts[73], {{g_bytes + 812, 8}}},
+    {&grpc_static_metadata_refcounts[74], {{g_bytes + 820, 17}}},
+    {&grpc_static_metadata_refcounts[75], {{g_bytes + 837, 13}}},
+    {&grpc_static_metadata_refcounts[76], {{g_bytes + 850, 8}}},
+    {&grpc_static_metadata_refcounts[77], {{g_bytes + 858, 19}}},
+    {&grpc_static_metadata_refcounts[78], {{g_bytes + 877, 13}}},
+    {&grpc_static_metadata_refcounts[79], {{g_bytes + 890, 4}}},
+    {&grpc_static_metadata_refcounts[80], {{g_bytes + 894, 8}}},
+    {&grpc_static_metadata_refcounts[81], {{g_bytes + 902, 12}}},
+    {&grpc_static_metadata_refcounts[82], {{g_bytes + 914, 18}}},
+    {&grpc_static_metadata_refcounts[83], {{g_bytes + 932, 19}}},
+    {&grpc_static_metadata_refcounts[84], {{g_bytes + 951, 5}}},
+    {&grpc_static_metadata_refcounts[85], {{g_bytes + 956, 7}}},
+    {&grpc_static_metadata_refcounts[86], {{g_bytes + 963, 7}}},
+    {&grpc_static_metadata_refcounts[87], {{g_bytes + 970, 11}}},
+    {&grpc_static_metadata_refcounts[88], {{g_bytes + 981, 6}}},
+    {&grpc_static_metadata_refcounts[89], {{g_bytes + 987, 10}}},
+    {&grpc_static_metadata_refcounts[90], {{g_bytes + 997, 25}}},
+    {&grpc_static_metadata_refcounts[91], {{g_bytes + 1022, 17}}},
+    {&grpc_static_metadata_refcounts[92], {{g_bytes + 1039, 4}}},
+    {&grpc_static_metadata_refcounts[93], {{g_bytes + 1043, 3}}},
+    {&grpc_static_metadata_refcounts[94], {{g_bytes + 1046, 16}}},
+    {&grpc_static_metadata_refcounts[95], {{g_bytes + 1062, 1}}},
+    {&grpc_static_metadata_refcounts[96], {{g_bytes + 1063, 8}}},
+    {&grpc_static_metadata_refcounts[97], {{g_bytes + 1071, 8}}},
+    {&grpc_static_metadata_refcounts[98], {{g_bytes + 1079, 16}}},
+    {&grpc_static_metadata_refcounts[99], {{g_bytes + 1095, 4}}},
+    {&grpc_static_metadata_refcounts[100], {{g_bytes + 1099, 3}}},
+    {&grpc_static_metadata_refcounts[101], {{g_bytes + 1102, 11}}},
+    {&grpc_static_metadata_refcounts[102], {{g_bytes + 1113, 16}}},
+    {&grpc_static_metadata_refcounts[103], {{g_bytes + 1129, 13}}},
+    {&grpc_static_metadata_refcounts[104], {{g_bytes + 1142, 12}}},
+    {&grpc_static_metadata_refcounts[105], {{g_bytes + 1154, 21}}},
 };
 
 uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT] = {
@@ -341,17 +345,17 @@ uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT] = {
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 4, 6, 6, 8, 8, 2, 4, 4};
 
 static const int8_t elems_r[] = {
-    15, 9,   -8, 0,  2,  -44, -78, 17, 0,   6,   -8,  0,   0,  0,  6,
-    -5, -10, 0,  0,  -2, -3,  -4,  0,  0,   0,   0,   0,   0,  0,  0,
-    0,  0,   0,  0,  0,  0,   0,   0,  0,   0,   0,   0,   0,  0,  0,
-    0,  0,   0,  0,  0,  0,   -63, 0,  -46, -68, -69, -53, 0,  31, 30,
-    29, 29,  28, 27, 26, 25,  24,  23, 22,  21,  20,  19,  18, 17, 18,
-    17, 16,  15, 14, 13, 12,  11,  10, 9,   8,   7,   6,   5,  4,  3,
-    2,  3,   3,  2,  6,  0,   0,   0,  0,   0,   0,   -5,  0};
+    16, 11,  -8, 0,  3,  -42, -81, -43, 0,  6,   -8,  0,   0,   0,  -7,
+    -3, -10, 0,  0,  0,  -1,  -2,  0,   0,  0,   0,   0,   0,   0,  0,
+    0,  0,   0,  0,  0,  0,   0,   0,   0,  0,   0,   0,   0,   0,  0,
+    0,  0,   0,  0,  0,  0,   0,   -63, 0,  -47, -68, -69, -70, 0,  33,
+    33, 32,  31, 30, 29, 28,  27,  26,  25, 24,  23,  22,  21,  20, 20,
+    19, 18,  17, 16, 15, 14,  13,  12,  11, 10,  9,   8,   7,   6,  5,
+    4,  4,   4,  3,  10, 9,   0,   0,   0,  0,   0,   0,   -3,  0};
 static uint32_t elems_phash(uint32_t i) {
-  i -= 40;
-  uint32_t x = i % 103;
-  uint32_t y = i / 103;
+  i -= 41;
+  uint32_t x = i % 104;
+  uint32_t y = i / 104;
   uint32_t h = x;
   if (y < GPR_ARRAY_SIZE(elems_r)) {
     uint32_t delta = (uint32_t)elems_r[y];
@@ -361,29 +365,29 @@ static uint32_t elems_phash(uint32_t i) {
 }
 
 static const uint16_t elem_keys[] = {
-    254,  255,  256,  257,  258,  259,  260,  1085, 1086, 143,   144,  1709,
-    462,  463,  1604, 40,   41,   761,  1716, 980,  981,  1611,  621,  1499,
-    760,  2024, 2129, 2234, 5384, 5699, 5804, 6014, 6119, 6224,  1732, 6329,
-    6434, 6539, 6644, 6749, 6854, 6959, 7064, 7169, 7274, 7379,  7484, 7589,
-    5909, 5594, 7694, 7799, 7904, 8009, 8114, 8219, 8324, 8429,  8534, 8639,
-    8744, 8849, 8954, 9059, 9164, 9269, 9374, 1145, 518,  9479,  204,  9584,
-    9689, 1151, 1152, 1153, 1154, 1775, 9794, 1040, 1670, 10529, 0,    0,
-    1782, 829,  0,    0,    0,    0,    344,  1567, 0,    0,     0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,     0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,     0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,     0,    0,
-    0};
+    257,  258,  259,  260,  261,  262,  263,  1096, 1097, 1513, 1725, 145,
+    146,  467,  468,  1619, 41,   42,   1733, 990,  991,  767,  768,  1627,
+    627,  837,  2043, 2149, 2255, 5541, 5859, 5965, 6071, 6177, 1749, 6283,
+    6389, 6495, 6601, 6707, 6813, 6919, 7025, 7131, 7237, 7343, 7449, 7555,
+    7661, 5753, 7767, 7873, 7979, 8085, 8191, 8297, 8403, 8509, 8615, 8721,
+    8827, 8933, 9039, 9145, 9251, 9357, 9463, 1156, 9569, 523,  9675, 9781,
+    206,  1162, 1163, 1164, 1165, 1792, 1582, 1050, 9887, 9993, 1686, 10735,
+    1799, 0,    0,    0,    0,    0,    347,  0,    0,    0,    0,    0,
+    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+    0,    0,    0,    0};
 static const uint8_t elem_idxs[] = {
-    7,  8,  9,   10,  11, 12, 13,  77,  79,  1,   2,  71, 5,  6,  25, 3,
-    4,  63, 84,  66,  65, 73, 67,  30,  62,  57,  37, 74, 14, 17, 18, 20,
-    21, 22, 15,  23,  24, 26, 27,  28,  29,  31,  32, 33, 34, 35, 36, 38,
-    19, 16, 39,  40,  41, 42, 43,  44,  45,  46,  47, 48, 49, 50, 51, 52,
-    53, 54, 55,  76,  69, 56, 70,  58,  59,  78,  80, 81, 82, 83, 60, 64,
-    72, 75, 255, 255, 85, 61, 255, 255, 255, 255, 0,  68};
+    7,  8,  9,  10, 11, 12,  13,  77,  79,  30,  71, 1,  2,  5,  6,  25,
+    3,  4,  84, 66, 65, 62,  63,  73,  67,  61,  57, 37, 74, 14, 17, 18,
+    19, 20, 15, 21, 22, 23,  24,  26,  27,  28,  29, 31, 32, 33, 34, 35,
+    36, 16, 38, 39, 40, 41,  42,  43,  44,  45,  46, 47, 48, 49, 50, 51,
+    52, 53, 54, 76, 55, 69,  56,  58,  70,  78,  80, 81, 82, 83, 68, 64,
+    59, 60, 72, 75, 85, 255, 255, 255, 255, 255, 0};
 
 grpc_mdelem grpc_static_mdelem_for_static_strings(int a, int b) {
   if (a == -1 || b == -1) return GRPC_MDNULL;
-  uint32_t k = (uint32_t)(a * 105 + b);
+  uint32_t k = (uint32_t)(a * 106 + b);
   uint32_t h = elems_phash(k);
   return h < GPR_ARRAY_SIZE(elem_keys) && elem_keys[h] == k &&
                  elem_idxs[h] != 255
@@ -396,175 +400,175 @@ grpc_mdelem_data grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT] = {
     {{&grpc_static_metadata_refcounts[3], {{g_bytes + 19, 10}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[1], {{g_bytes + 5, 7}}},
-     {&grpc_static_metadata_refcounts[38], {{g_bytes + 504, 3}}}},
+     {&grpc_static_metadata_refcounts[39], {{g_bytes + 532, 3}}}},
     {{&grpc_static_metadata_refcounts[1], {{g_bytes + 5, 7}}},
-     {&grpc_static_metadata_refcounts[39], {{g_bytes + 507, 4}}}},
+     {&grpc_static_metadata_refcounts[40], {{g_bytes + 535, 4}}}},
     {{&grpc_static_metadata_refcounts[0], {{g_bytes + 0, 5}}},
-     {&grpc_static_metadata_refcounts[40], {{g_bytes + 511, 1}}}},
+     {&grpc_static_metadata_refcounts[41], {{g_bytes + 539, 1}}}},
     {{&grpc_static_metadata_refcounts[0], {{g_bytes + 0, 5}}},
-     {&grpc_static_metadata_refcounts[41], {{g_bytes + 512, 11}}}},
+     {&grpc_static_metadata_refcounts[42], {{g_bytes + 540, 11}}}},
     {{&grpc_static_metadata_refcounts[4], {{g_bytes + 29, 7}}},
-     {&grpc_static_metadata_refcounts[42], {{g_bytes + 523, 4}}}},
+     {&grpc_static_metadata_refcounts[43], {{g_bytes + 551, 4}}}},
     {{&grpc_static_metadata_refcounts[4], {{g_bytes + 29, 7}}},
-     {&grpc_static_metadata_refcounts[43], {{g_bytes + 527, 5}}}},
+     {&grpc_static_metadata_refcounts[44], {{g_bytes + 555, 5}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[44], {{g_bytes + 532, 3}}}},
+     {&grpc_static_metadata_refcounts[45], {{g_bytes + 560, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[45], {{g_bytes + 535, 3}}}},
+     {&grpc_static_metadata_refcounts[46], {{g_bytes + 563, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[46], {{g_bytes + 538, 3}}}},
+     {&grpc_static_metadata_refcounts[47], {{g_bytes + 566, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[47], {{g_bytes + 541, 3}}}},
+     {&grpc_static_metadata_refcounts[48], {{g_bytes + 569, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[48], {{g_bytes + 544, 3}}}},
+     {&grpc_static_metadata_refcounts[49], {{g_bytes + 572, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[49], {{g_bytes + 547, 3}}}},
+     {&grpc_static_metadata_refcounts[50], {{g_bytes + 575, 3}}}},
     {{&grpc_static_metadata_refcounts[2], {{g_bytes + 12, 7}}},
-     {&grpc_static_metadata_refcounts[50], {{g_bytes + 550, 3}}}},
-    {{&grpc_static_metadata_refcounts[51], {{g_bytes + 553, 14}}},
+     {&grpc_static_metadata_refcounts[51], {{g_bytes + 578, 3}}}},
+    {{&grpc_static_metadata_refcounts[52], {{g_bytes + 581, 14}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[16], {{g_bytes + 186, 15}}},
-     {&grpc_static_metadata_refcounts[52], {{g_bytes + 567, 13}}}},
-    {{&grpc_static_metadata_refcounts[53], {{g_bytes + 580, 15}}},
+     {&grpc_static_metadata_refcounts[53], {{g_bytes + 595, 13}}}},
+    {{&grpc_static_metadata_refcounts[54], {{g_bytes + 608, 15}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[54], {{g_bytes + 595, 13}}},
+    {{&grpc_static_metadata_refcounts[55], {{g_bytes + 623, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[55], {{g_bytes + 608, 6}}},
+    {{&grpc_static_metadata_refcounts[56], {{g_bytes + 636, 6}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[56], {{g_bytes + 614, 27}}},
+    {{&grpc_static_metadata_refcounts[57], {{g_bytes + 642, 27}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[57], {{g_bytes + 641, 3}}},
+    {{&grpc_static_metadata_refcounts[58], {{g_bytes + 669, 3}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[58], {{g_bytes + 644, 5}}},
+    {{&grpc_static_metadata_refcounts[59], {{g_bytes + 672, 5}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[59], {{g_bytes + 649, 13}}},
+    {{&grpc_static_metadata_refcounts[60], {{g_bytes + 677, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[60], {{g_bytes + 662, 13}}},
+    {{&grpc_static_metadata_refcounts[61], {{g_bytes + 690, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[61], {{g_bytes + 675, 19}}},
+    {{&grpc_static_metadata_refcounts[62], {{g_bytes + 703, 19}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[15], {{g_bytes + 170, 16}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[62], {{g_bytes + 694, 16}}},
+    {{&grpc_static_metadata_refcounts[63], {{g_bytes + 722, 16}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[63], {{g_bytes + 710, 14}}},
+    {{&grpc_static_metadata_refcounts[64], {{g_bytes + 738, 14}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[64], {{g_bytes + 724, 16}}},
+    {{&grpc_static_metadata_refcounts[65], {{g_bytes + 752, 16}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[65], {{g_bytes + 740, 13}}},
+    {{&grpc_static_metadata_refcounts[66], {{g_bytes + 768, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[14], {{g_bytes + 158, 12}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[66], {{g_bytes + 753, 6}}},
+    {{&grpc_static_metadata_refcounts[67], {{g_bytes + 781, 6}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[67], {{g_bytes + 759, 4}}},
+    {{&grpc_static_metadata_refcounts[68], {{g_bytes + 787, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[68], {{g_bytes + 763, 4}}},
+    {{&grpc_static_metadata_refcounts[69], {{g_bytes + 791, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[69], {{g_bytes + 767, 6}}},
+    {{&grpc_static_metadata_refcounts[70], {{g_bytes + 795, 6}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[70], {{g_bytes + 773, 7}}},
+    {{&grpc_static_metadata_refcounts[71], {{g_bytes + 801, 7}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[71], {{g_bytes + 780, 4}}},
+    {{&grpc_static_metadata_refcounts[72], {{g_bytes + 808, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[20], {{g_bytes + 278, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[72], {{g_bytes + 784, 8}}},
+    {{&grpc_static_metadata_refcounts[73], {{g_bytes + 812, 8}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[73], {{g_bytes + 792, 17}}},
+    {{&grpc_static_metadata_refcounts[74], {{g_bytes + 820, 17}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[74], {{g_bytes + 809, 13}}},
+    {{&grpc_static_metadata_refcounts[75], {{g_bytes + 837, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[75], {{g_bytes + 822, 8}}},
+    {{&grpc_static_metadata_refcounts[76], {{g_bytes + 850, 8}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[76], {{g_bytes + 830, 19}}},
+    {{&grpc_static_metadata_refcounts[77], {{g_bytes + 858, 19}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[77], {{g_bytes + 849, 13}}},
+    {{&grpc_static_metadata_refcounts[78], {{g_bytes + 877, 13}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[78], {{g_bytes + 862, 4}}},
+    {{&grpc_static_metadata_refcounts[79], {{g_bytes + 890, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[79], {{g_bytes + 866, 8}}},
+    {{&grpc_static_metadata_refcounts[80], {{g_bytes + 894, 8}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[80], {{g_bytes + 874, 12}}},
+    {{&grpc_static_metadata_refcounts[81], {{g_bytes + 902, 12}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[81], {{g_bytes + 886, 18}}},
+    {{&grpc_static_metadata_refcounts[82], {{g_bytes + 914, 18}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[82], {{g_bytes + 904, 19}}},
+    {{&grpc_static_metadata_refcounts[83], {{g_bytes + 932, 19}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[83], {{g_bytes + 923, 5}}},
+    {{&grpc_static_metadata_refcounts[84], {{g_bytes + 951, 5}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[84], {{g_bytes + 928, 7}}},
+    {{&grpc_static_metadata_refcounts[85], {{g_bytes + 956, 7}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[85], {{g_bytes + 935, 7}}},
+    {{&grpc_static_metadata_refcounts[86], {{g_bytes + 963, 7}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[86], {{g_bytes + 942, 11}}},
+    {{&grpc_static_metadata_refcounts[87], {{g_bytes + 970, 11}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[87], {{g_bytes + 953, 6}}},
+    {{&grpc_static_metadata_refcounts[88], {{g_bytes + 981, 6}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[88], {{g_bytes + 959, 10}}},
+    {{&grpc_static_metadata_refcounts[89], {{g_bytes + 987, 10}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[89], {{g_bytes + 969, 25}}},
+    {{&grpc_static_metadata_refcounts[90], {{g_bytes + 997, 25}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[90], {{g_bytes + 994, 17}}},
+    {{&grpc_static_metadata_refcounts[91], {{g_bytes + 1022, 17}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[19], {{g_bytes + 268, 10}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[91], {{g_bytes + 1011, 4}}},
+    {{&grpc_static_metadata_refcounts[92], {{g_bytes + 1039, 4}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[92], {{g_bytes + 1015, 3}}},
+    {{&grpc_static_metadata_refcounts[93], {{g_bytes + 1043, 3}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[93], {{g_bytes + 1018, 16}}},
+    {{&grpc_static_metadata_refcounts[94], {{g_bytes + 1046, 16}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[7], {{g_bytes + 50, 11}}},
-     {&grpc_static_metadata_refcounts[94], {{g_bytes + 1034, 1}}}},
+     {&grpc_static_metadata_refcounts[95], {{g_bytes + 1062, 1}}}},
     {{&grpc_static_metadata_refcounts[7], {{g_bytes + 50, 11}}},
      {&grpc_static_metadata_refcounts[25], {{g_bytes + 350, 1}}}},
     {{&grpc_static_metadata_refcounts[7], {{g_bytes + 50, 11}}},
      {&grpc_static_metadata_refcounts[26], {{g_bytes + 351, 1}}}},
     {{&grpc_static_metadata_refcounts[9], {{g_bytes + 77, 13}}},
-     {&grpc_static_metadata_refcounts[95], {{g_bytes + 1035, 8}}}},
+     {&grpc_static_metadata_refcounts[96], {{g_bytes + 1063, 8}}}},
     {{&grpc_static_metadata_refcounts[9], {{g_bytes + 77, 13}}},
-     {&grpc_static_metadata_refcounts[36], {{g_bytes + 489, 4}}}},
+     {&grpc_static_metadata_refcounts[37], {{g_bytes + 517, 4}}}},
     {{&grpc_static_metadata_refcounts[9], {{g_bytes + 77, 13}}},
-     {&grpc_static_metadata_refcounts[35], {{g_bytes + 482, 7}}}},
+     {&grpc_static_metadata_refcounts[36], {{g_bytes + 510, 7}}}},
     {{&grpc_static_metadata_refcounts[5], {{g_bytes + 36, 2}}},
-     {&grpc_static_metadata_refcounts[96], {{g_bytes + 1043, 8}}}},
+     {&grpc_static_metadata_refcounts[97], {{g_bytes + 1071, 8}}}},
     {{&grpc_static_metadata_refcounts[14], {{g_bytes + 158, 12}}},
-     {&grpc_static_metadata_refcounts[97], {{g_bytes + 1051, 16}}}},
+     {&grpc_static_metadata_refcounts[98], {{g_bytes + 1079, 16}}}},
     {{&grpc_static_metadata_refcounts[4], {{g_bytes + 29, 7}}},
-     {&grpc_static_metadata_refcounts[98], {{g_bytes + 1067, 4}}}},
+     {&grpc_static_metadata_refcounts[99], {{g_bytes + 1095, 4}}}},
     {{&grpc_static_metadata_refcounts[1], {{g_bytes + 5, 7}}},
-     {&grpc_static_metadata_refcounts[99], {{g_bytes + 1071, 3}}}},
+     {&grpc_static_metadata_refcounts[100], {{g_bytes + 1099, 3}}}},
     {{&grpc_static_metadata_refcounts[16], {{g_bytes + 186, 15}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[15], {{g_bytes + 170, 16}}},
-     {&grpc_static_metadata_refcounts[95], {{g_bytes + 1035, 8}}}},
+     {&grpc_static_metadata_refcounts[96], {{g_bytes + 1063, 8}}}},
     {{&grpc_static_metadata_refcounts[15], {{g_bytes + 170, 16}}},
-     {&grpc_static_metadata_refcounts[36], {{g_bytes + 489, 4}}}},
+     {&grpc_static_metadata_refcounts[37], {{g_bytes + 517, 4}}}},
     {{&grpc_static_metadata_refcounts[21], {{g_bytes + 282, 8}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
-    {{&grpc_static_metadata_refcounts[100], {{g_bytes + 1074, 11}}},
+    {{&grpc_static_metadata_refcounts[101], {{g_bytes + 1102, 11}}},
      {&grpc_static_metadata_refcounts[29], {{g_bytes + 354, 0}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[95], {{g_bytes + 1035, 8}}}},
+     {&grpc_static_metadata_refcounts[96], {{g_bytes + 1063, 8}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[35], {{g_bytes + 482, 7}}}},
+     {&grpc_static_metadata_refcounts[36], {{g_bytes + 510, 7}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[101], {{g_bytes + 1085, 16}}}},
+     {&grpc_static_metadata_refcounts[102], {{g_bytes + 1113, 16}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[36], {{g_bytes + 489, 4}}}},
+     {&grpc_static_metadata_refcounts[37], {{g_bytes + 517, 4}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[102], {{g_bytes + 1101, 13}}}},
+     {&grpc_static_metadata_refcounts[103], {{g_bytes + 1129, 13}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[103], {{g_bytes + 1114, 12}}}},
+     {&grpc_static_metadata_refcounts[104], {{g_bytes + 1142, 12}}}},
     {{&grpc_static_metadata_refcounts[10], {{g_bytes + 90, 20}}},
-     {&grpc_static_metadata_refcounts[104], {{g_bytes + 1126, 21}}}},
+     {&grpc_static_metadata_refcounts[105], {{g_bytes + 1154, 21}}}},
     {{&grpc_static_metadata_refcounts[16], {{g_bytes + 186, 15}}},
-     {&grpc_static_metadata_refcounts[95], {{g_bytes + 1035, 8}}}},
+     {&grpc_static_metadata_refcounts[96], {{g_bytes + 1063, 8}}}},
     {{&grpc_static_metadata_refcounts[16], {{g_bytes + 186, 15}}},
-     {&grpc_static_metadata_refcounts[36], {{g_bytes + 489, 4}}}},
+     {&grpc_static_metadata_refcounts[37], {{g_bytes + 517, 4}}}},
     {{&grpc_static_metadata_refcounts[16], {{g_bytes + 186, 15}}},
-     {&grpc_static_metadata_refcounts[102], {{g_bytes + 1101, 13}}}},
+     {&grpc_static_metadata_refcounts[103], {{g_bytes + 1129, 13}}}},
 };
 const uint8_t grpc_static_accept_encoding_metadata[8] = {0,  76, 77, 78,
                                                          79, 80, 81, 82};
diff --git a/src/core/lib/transport/static_metadata.h b/src/core/lib/transport/static_metadata.h
index 5e57ea5741..2bb9f72838 100644
--- a/src/core/lib/transport/static_metadata.h
+++ b/src/core/lib/transport/static_metadata.h
@@ -31,7 +31,7 @@
 
 #include "src/core/lib/transport/metadata.h"
 
-#define GRPC_STATIC_MDSTR_COUNT 105
+#define GRPC_STATIC_MDSTR_COUNT 106
 extern const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];
 /* ":path" */
 #define GRPC_MDSTR_PATH (grpc_static_slice_table[0])
@@ -107,147 +107,150 @@ extern const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];
 /* "/grpc.lb.v1.LoadBalancer/BalanceLoad" */
 #define GRPC_MDSTR_SLASH_GRPC_DOT_LB_DOT_V1_DOT_LOADBALANCER_SLASH_BALANCELOAD \
   (grpc_static_slice_table[34])
+/* "/grpc.health.v1.Health/Watch" */
+#define GRPC_MDSTR_SLASH_GRPC_DOT_HEALTH_DOT_V1_DOT_HEALTH_SLASH_WATCH \
+  (grpc_static_slice_table[35])
 /* "deflate" */
-#define GRPC_MDSTR_DEFLATE (grpc_static_slice_table[35])
+#define GRPC_MDSTR_DEFLATE (grpc_static_slice_table[36])
 /* "gzip" */
-#define GRPC_MDSTR_GZIP (grpc_static_slice_table[36])
+#define GRPC_MDSTR_GZIP (grpc_static_slice_table[37])
 /* "stream/gzip" */
-#define GRPC_MDSTR_STREAM_SLASH_GZIP (grpc_static_slice_table[37])
+#define GRPC_MDSTR_STREAM_SLASH_GZIP (grpc_static_slice_table[38])
 /* "GET" */
-#define GRPC_MDSTR_GET (grpc_static_slice_table[38])
+#define GRPC_MDSTR_GET (grpc_static_slice_table[39])
 /* "POST" */
-#define GRPC_MDSTR_POST (grpc_static_slice_table[39])
+#define GRPC_MDSTR_POST (grpc_static_slice_table[40])
 /* "/" */
-#define GRPC_MDSTR_SLASH (grpc_static_slice_table[40])
+#define GRPC_MDSTR_SLASH (grpc_static_slice_table[41])
 /* "/index.html" */
-#define GRPC_MDSTR_SLASH_INDEX_DOT_HTML (grpc_static_slice_table[41])
+#define GRPC_MDSTR_SLASH_INDEX_DOT_HTML (grpc_static_slice_table[42])
 /* "http" */
-#define GRPC_MDSTR_HTTP (grpc_static_slice_table[42])
+#define GRPC_MDSTR_HTTP (grpc_static_slice_table[43])
 /* "https" */
-#define GRPC_MDSTR_HTTPS (grpc_static_slice_table[43])
+#define GRPC_MDSTR_HTTPS (grpc_static_slice_table[44])
 /* "200" */
-#define GRPC_MDSTR_200 (grpc_static_slice_table[44])
+#define GRPC_MDSTR_200 (grpc_static_slice_table[45])
 /* "204" */
-#define GRPC_MDSTR_204 (grpc_static_slice_table[45])
+#define GRPC_MDSTR_204 (grpc_static_slice_table[46])
 /* "206" */
-#define GRPC_MDSTR_206 (grpc_static_slice_table[46])
+#define GRPC_MDSTR_206 (grpc_static_slice_table[47])
 /* "304" */
-#define GRPC_MDSTR_304 (grpc_static_slice_table[47])
+#define GRPC_MDSTR_304 (grpc_static_slice_table[48])
 /* "400" */
-#define GRPC_MDSTR_400 (grpc_static_slice_table[48])
+#define GRPC_MDSTR_400 (grpc_static_slice_table[49])
 /* "404" */
-#define GRPC_MDSTR_404 (grpc_static_slice_table[49])
+#define GRPC_MDSTR_404 (grpc_static_slice_table[50])
 /* "500" */
-#define GRPC_MDSTR_500 (grpc_static_slice_table[50])
+#define GRPC_MDSTR_500 (grpc_static_slice_table[51])
 /* "accept-charset" */
-#define GRPC_MDSTR_ACCEPT_CHARSET (grpc_static_slice_table[51])
+#define GRPC_MDSTR_ACCEPT_CHARSET (grpc_static_slice_table[52])
 /* "gzip, deflate" */
-#define GRPC_MDSTR_GZIP_COMMA_DEFLATE (grpc_static_slice_table[52])
+#define GRPC_MDSTR_GZIP_COMMA_DEFLATE (grpc_static_slice_table[53])
 /* "accept-language" */
-#define GRPC_MDSTR_ACCEPT_LANGUAGE (grpc_static_slice_table[53])
+#define GRPC_MDSTR_ACCEPT_LANGUAGE (grpc_static_slice_table[54])
 /* "accept-ranges" */
-#define GRPC_MDSTR_ACCEPT_RANGES (grpc_static_slice_table[54])
+#define GRPC_MDSTR_ACCEPT_RANGES (grpc_static_slice_table[55])
 /* "accept" */
-#define GRPC_MDSTR_ACCEPT (grpc_static_slice_table[55])
+#define GRPC_MDSTR_ACCEPT (grpc_static_slice_table[56])
 /* "access-control-allow-origin" */
-#define GRPC_MDSTR_ACCESS_CONTROL_ALLOW_ORIGIN (grpc_static_slice_table[56])
+#define GRPC_MDSTR_ACCESS_CONTROL_ALLOW_ORIGIN (grpc_static_slice_table[57])
 /* "age" */
-#define GRPC_MDSTR_AGE (grpc_static_slice_table[57])
+#define GRPC_MDSTR_AGE (grpc_static_slice_table[58])
 /* "allow" */
-#define GRPC_MDSTR_ALLOW (grpc_static_slice_table[58])
+#define GRPC_MDSTR_ALLOW (grpc_static_slice_table[59])
 /* "authorization" */
-#define GRPC_MDSTR_AUTHORIZATION (grpc_static_slice_table[59])
+#define GRPC_MDSTR_AUTHORIZATION (grpc_static_slice_table[60])
 /* "cache-control" */
-#define GRPC_MDSTR_CACHE_CONTROL (grpc_static_slice_table[60])
+#define GRPC_MDSTR_CACHE_CONTROL (grpc_static_slice_table[61])
 /* "content-disposition" */
-#define GRPC_MDSTR_CONTENT_DISPOSITION (grpc_static_slice_table[61])
+#define GRPC_MDSTR_CONTENT_DISPOSITION (grpc_static_slice_table[62])
 /* "content-language" */
-#define GRPC_MDSTR_CONTENT_LANGUAGE (grpc_static_slice_table[62])
+#define GRPC_MDSTR_CONTENT_LANGUAGE (grpc_static_slice_table[63])
 /* "content-length" */
-#define GRPC_MDSTR_CONTENT_LENGTH (grpc_static_slice_table[63])
+#define GRPC_MDSTR_CONTENT_LENGTH (grpc_static_slice_table[64])
 /* "content-location" */
-#define GRPC_MDSTR_CONTENT_LOCATION (grpc_static_slice_table[64])
+#define GRPC_MDSTR_CONTENT_LOCATION (grpc_static_slice_table[65])
 /* "content-range" */
-#define GRPC_MDSTR_CONTENT_RANGE (grpc_static_slice_table[65])
+#define GRPC_MDSTR_CONTENT_RANGE (grpc_static_slice_table[66])
 /* "cookie" */
-#define GRPC_MDSTR_COOKIE (grpc_static_slice_table[66])
+#define GRPC_MDSTR_COOKIE (grpc_static_slice_table[67])
 /* "date" */
-#define GRPC_MDSTR_DATE (grpc_static_slice_table[67])
+#define GRPC_MDSTR_DATE (grpc_static_slice_table[68])
 /* "etag" */
-#define GRPC_MDSTR_ETAG (grpc_static_slice_table[68])
+#define GRPC_MDSTR_ETAG (grpc_static_slice_table[69])
 /* "expect" */
-#define GRPC_MDSTR_EXPECT (grpc_static_slice_table[69])
+#define GRPC_MDSTR_EXPECT (grpc_static_slice_table[70])
 /* "expires" */
-#define GRPC_MDSTR_EXPIRES (grpc_static_slice_table[70])
+#define GRPC_MDSTR_EXPIRES (grpc_static_slice_table[71])
 /* "from" */
-#define GRPC_MDSTR_FROM (grpc_static_slice_table[71])
+#define GRPC_MDSTR_FROM (grpc_static_slice_table[72])
 /* "if-match" */
-#define GRPC_MDSTR_IF_MATCH (grpc_static_slice_table[72])
+#define GRPC_MDSTR_IF_MATCH (grpc_static_slice_table[73])
 /* "if-modified-since" */
-#define GRPC_MDSTR_IF_MODIFIED_SINCE (grpc_static_slice_table[73])
+#define GRPC_MDSTR_IF_MODIFIED_SINCE (grpc_static_slice_table[74])
 /* "if-none-match" */
-#define GRPC_MDSTR_IF_NONE_MATCH (grpc_static_slice_table[74])
+#define GRPC_MDSTR_IF_NONE_MATCH (grpc_static_slice_table[75])
 /* "if-range" */
-#define GRPC_MDSTR_IF_RANGE (grpc_static_slice_table[75])
+#define GRPC_MDSTR_IF_RANGE (grpc_static_slice_table[76])
 /* "if-unmodified-since" */
-#define GRPC_MDSTR_IF_UNMODIFIED_SINCE (grpc_static_slice_table[76])
+#define GRPC_MDSTR_IF_UNMODIFIED_SINCE (grpc_static_slice_table[77])
 /* "last-modified" */
-#define GRPC_MDSTR_LAST_MODIFIED (grpc_static_slice_table[77])
+#define GRPC_MDSTR_LAST_MODIFIED (grpc_static_slice_table[78])
 /* "link" */
-#define GRPC_MDSTR_LINK (grpc_static_slice_table[78])
+#define GRPC_MDSTR_LINK (grpc_static_slice_table[79])
 /* "location" */
-#define GRPC_MDSTR_LOCATION (grpc_static_slice_table[79])
+#define GRPC_MDSTR_LOCATION (grpc_static_slice_table[80])
 /* "max-forwards" */
-#define GRPC_MDSTR_MAX_FORWARDS (grpc_static_slice_table[80])
+#define GRPC_MDSTR_MAX_FORWARDS (grpc_static_slice_table[81])
 /* "proxy-authenticate" */
-#define GRPC_MDSTR_PROXY_AUTHENTICATE (grpc_static_slice_table[81])
+#define GRPC_MDSTR_PROXY_AUTHENTICATE (grpc_static_slice_table[82])
 /* "proxy-authorization" */
-#define GRPC_MDSTR_PROXY_AUTHORIZATION (grpc_static_slice_table[82])
+#define GRPC_MDSTR_PROXY_AUTHORIZATION (grpc_static_slice_table[83])
 /* "range" */
-#define GRPC_MDSTR_RANGE (grpc_static_slice_table[83])
+#define GRPC_MDSTR_RANGE (grpc_static_slice_table[84])
 /* "referer" */
-#define GRPC_MDSTR_REFERER (grpc_static_slice_table[84])
+#define GRPC_MDSTR_REFERER (grpc_static_slice_table[85])
 /* "refresh" */
-#define GRPC_MDSTR_REFRESH (grpc_static_slice_table[85])
+#define GRPC_MDSTR_REFRESH (grpc_static_slice_table[86])
 /* "retry-after" */
-#define GRPC_MDSTR_RETRY_AFTER (grpc_static_slice_table[86])
+#define GRPC_MDSTR_RETRY_AFTER (grpc_static_slice_table[87])
 /* "server" */
-#define GRPC_MDSTR_SERVER (grpc_static_slice_table[87])
+#define GRPC_MDSTR_SERVER (grpc_static_slice_table[88])
 /* "set-cookie" */
-#define GRPC_MDSTR_SET_COOKIE (grpc_static_slice_table[88])
+#define GRPC_MDSTR_SET_COOKIE (grpc_static_slice_table[89])
 /* "strict-transport-security" */
-#define GRPC_MDSTR_STRICT_TRANSPORT_SECURITY (grpc_static_slice_table[89])
+#define GRPC_MDSTR_STRICT_TRANSPORT_SECURITY (grpc_static_slice_table[90])
 /* "transfer-encoding" */
-#define GRPC_MDSTR_TRANSFER_ENCODING (grpc_static_slice_table[90])
+#define GRPC_MDSTR_TRANSFER_ENCODING (grpc_static_slice_table[91])
 /* "vary" */
-#define GRPC_MDSTR_VARY (grpc_static_slice_table[91])
+#define GRPC_MDSTR_VARY (grpc_static_slice_table[92])
 /* "via" */
-#define GRPC_MDSTR_VIA (grpc_static_slice_table[92])
+#define GRPC_MDSTR_VIA (grpc_static_slice_table[93])
 /* "www-authenticate" */
-#define GRPC_MDSTR_WWW_AUTHENTICATE (grpc_static_slice_table[93])
+#define GRPC_MDSTR_WWW_AUTHENTICATE (grpc_static_slice_table[94])
 /* "0" */
-#define GRPC_MDSTR_0 (grpc_static_slice_table[94])
+#define GRPC_MDSTR_0 (grpc_static_slice_table[95])
 /* "identity" */
-#define GRPC_MDSTR_IDENTITY (grpc_static_slice_table[95])
+#define GRPC_MDSTR_IDENTITY (grpc_static_slice_table[96])
 /* "trailers" */
-#define GRPC_MDSTR_TRAILERS (grpc_static_slice_table[96])
+#define GRPC_MDSTR_TRAILERS (grpc_static_slice_table[97])
 /* "application/grpc" */
-#define GRPC_MDSTR_APPLICATION_SLASH_GRPC (grpc_static_slice_table[97])
+#define GRPC_MDSTR_APPLICATION_SLASH_GRPC (grpc_static_slice_table[98])
 /* "grpc" */
-#define GRPC_MDSTR_GRPC (grpc_static_slice_table[98])
+#define GRPC_MDSTR_GRPC (grpc_static_slice_table[99])
 /* "PUT" */
-#define GRPC_MDSTR_PUT (grpc_static_slice_table[99])
+#define GRPC_MDSTR_PUT (grpc_static_slice_table[100])
 /* "lb-cost-bin" */
-#define GRPC_MDSTR_LB_COST_BIN (grpc_static_slice_table[100])
+#define GRPC_MDSTR_LB_COST_BIN (grpc_static_slice_table[101])
 /* "identity,deflate" */
-#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE (grpc_static_slice_table[101])
+#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE (grpc_static_slice_table[102])
 /* "identity,gzip" */
-#define GRPC_MDSTR_IDENTITY_COMMA_GZIP (grpc_static_slice_table[102])
+#define GRPC_MDSTR_IDENTITY_COMMA_GZIP (grpc_static_slice_table[103])
 /* "deflate,gzip" */
-#define GRPC_MDSTR_DEFLATE_COMMA_GZIP (grpc_static_slice_table[103])
+#define GRPC_MDSTR_DEFLATE_COMMA_GZIP (grpc_static_slice_table[104])
 /* "identity,deflate,gzip" */
 #define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE_COMMA_GZIP \
-  (grpc_static_slice_table[104])
+  (grpc_static_slice_table[105])
 
 extern const grpc_slice_refcount_vtable grpc_static_metadata_vtable;
 extern grpc_slice_refcount