Build with GN on CT bots.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2347203002

Review-Url: https://codereview.chromium.org/2347203002

13 files changed, 337 insertions, 96 deletions

diff --git a/infra/bots/recipe_modules/flavor/gn_flavor.py b/infra/bots/recipe_modules/flavor/gn_flavor.py
index fb02a3ae3a..b2a2230cc9 100644
--- a/infra/bots/recipe_modules/flavor/gn_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_flavor.py
@@ -12,6 +12,7 @@ class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
     target_arch  = self.m.vars.builder_cfg.get('target_arch',  '')
 
     return any([
+      'CT' in extra_config,
       'SAN' in extra_config,
       extra_config == 'Fast',
       extra_config == 'GN',
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_CPU_BENCH_10k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_CPU_BENCH_10k_SKPs.json
index 9ef24378dc..88b7dedd6a 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_CPU_BENCH_10k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_CPU_BENCH_10k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "nanobench"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Release",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Release",
+      "--args=cc=\"gcc\" cxx=\"g++\" is_debug=false"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Release"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build nanobench"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_100k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_100k_SKPs.json
index 6e65605ad1..1fac56ce75 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_100k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_100k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs.json
index c443cdcc92..9a13c4ee76 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs_Trybot.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs_Trybot.json
index 001e091567..5960092d2f 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs_Trybot.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_10k_SKPs_Trybot.json
@@ -163,18 +163,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs.json
index ae9c20dd09..04fb4e5297 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_2slaves_failure.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_2slaves_failure.json
index f9aaa9025b..8d747f6a95 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_2slaves_failure.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_2slaves_failure.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_slave3_failure.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_slave3_failure.json
index d0fcbe2c42..470d3c4fff 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_slave3_failure.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_DM_1m_SKPs_slave3_failure.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "dm"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build dm"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_10k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_10k_SKPs.json
index 6f0b8e0d09..6964598542 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_10k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_10k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "nanobench"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Release",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Release",
+      "--args=cc=\"gcc\" cxx=\"g++\" is_debug=false"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Release"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build nanobench"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_1k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_1k_SKPs.json
index 705653a4a2..0372f6998e 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_1k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_GPU_BENCH_1k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "nanobench"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Release",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Release",
+      "--args=cc=\"gcc\" cxx=\"g++\" is_debug=false"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Release"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build nanobench"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_100k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_100k_SKPs.json
index d029db364f..413cd2c555 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_100k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_100k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "tools"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build tools"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs.json
index b6d0022140..551baa05da 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "tools"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build tools"
+    "name": "ninja"
   },
   {
     "cmd": [
diff --git a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs_Trybot.json b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs_Trybot.json
index 937e4f1d85..8b36687f61 100644
--- a/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs_Trybot.json
+++ b/infra/bots/recipes/swarm_ct_skps.expected/CT_IMG_DECODE_10k_SKPs_Trybot.json
@@ -143,18 +143,38 @@
   },
   {
     "cmd": [
-      "make",
-      "tools"
+      "[CUSTOM_/_B_WORK]/skia/bin/fetch-gn"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "CHROME_PATH": "[SLAVE_BUILD]/src",
-      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "fetch-gn"
+  },
+  {
+    "cmd": [
+      "gn",
+      "gen",
+      "[SLAVE_BUILD]/out/Debug",
+      "--args=cc=\"gcc\" cxx=\"g++\""
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gn gen"
+  },
+  {
+    "cmd": [
+      "ninja",
+      "-C",
+      "[SLAVE_BUILD]/out/Debug"
+    ],
+    "cwd": "[CUSTOM_/_B_WORK]/skia",
+    "env": {
+      "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]"
     },
-    "name": "build tools"
+    "name": "ninja"
   },
   {
     "cmd": [