Reland "Remove setting/use of GrPixelConfig in GrBackendTex/RT ctors."

This reverts commit 34aa059c1502d67c9a5f4db449667a8709b69fb9.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Revert "Remove setting/use of GrPixelConfig in GrBackendTex/RT ctors."
> 
> This reverts commit ff2181e62e79ffd2ce628fc8c05b5457d4f54163.
> 
> Reason for revert: suspect it's behind Chrome roll failure
> 
> Original change's description:
> > Remove setting/use of GrPixelConfig in GrBackendTex/RT ctors.
> > 
> > Bug: skia:
> > Change-Id: I1466668e3502cd1e6e1f6aed4105e0f626d293dd
> > Reviewed-on: https://skia-review.googlesource.com/138987
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> > Reviewed-by: Robert Phillips <robertphillips@google.com>
> 
> TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com
> 
> Change-Id: I4cba44858aafffbadc45e18349b93c741d7cfc66
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/139220
> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

Bug: skia:
Change-Id: Ib1fd10c126862824f3e31c420c697ac749c637f5
Reviewed-on: https://skia-review.googlesource.com/139221
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>

3 files changed, 10 insertions, 41 deletions

diff --git a/src/gpu/vk/GrVkGpu.cpp b/src/gpu/vk/GrVkGpu.cpp
index 881e28d514..a98b3b3108 100644
--- a/src/gpu/vk/GrVkGpu.cpp
+++ b/src/gpu/vk/GrVkGpu.cpp
@@ -1359,7 +1359,11 @@ GrBackendTexture GrVkGpu::createTestingOnlyBackendTexture(const void* srcData, i
                                         &info)) {
         return {};
     }
-    return GrBackendTexture(w, h, info);
+    GrBackendTexture beTex = GrBackendTexture(w, h, info);
+    // Lots of tests don't go through Skia's public interface which will set the config so for
+    // testing we make sure we set a config here.
+    beTex.setPixelConfig(config);
+    return beTex;
 }
 
 bool GrVkGpu::isTestingOnlyBackendTexture(const GrBackendTexture& tex) const {
@@ -1409,7 +1413,11 @@ GrBackendRenderTarget GrVkGpu::createTestingOnlyBackendRenderTarget(int w, int h
                                         &info)) {
         return {};
     }
-    return {w, h, 1, 0, info};
+    GrBackendRenderTarget beRT = GrBackendRenderTarget(w, h, 1, 0, info);
+    // Lots of tests don't go through Skia's public interface which will set the config so for
+    // testing we make sure we set a config here.
+    beRT.setPixelConfig(config);
+    return beRT;
 }
 
 void GrVkGpu::deleteTestingOnlyBackendRenderTarget(const GrBackendRenderTarget& rt) {
diff --git a/src/gpu/vk/GrVkUtil.cpp b/src/gpu/vk/GrVkUtil.cpp
index 2b0bba732d..b0aa3d4c14 100644
--- a/src/gpu/vk/GrVkUtil.cpp
+++ b/src/gpu/vk/GrVkUtil.cpp
@@ -75,40 +75,6 @@ bool GrPixelConfigToVkFormat(GrPixelConfig config, VkFormat* format) {
     return false;
 }
 
-GrPixelConfig GrVkFormatToPixelConfig(VkFormat format) {
-    switch (format) {
-        case VK_FORMAT_R8G8B8A8_UNORM:
-            return kRGBA_8888_GrPixelConfig;
-        case VK_FORMAT_B8G8R8A8_UNORM:
-            return kBGRA_8888_GrPixelConfig;
-        case VK_FORMAT_R8G8B8A8_SRGB:
-            return kSRGBA_8888_GrPixelConfig;
-        case VK_FORMAT_B8G8R8A8_SRGB:
-            return kSBGRA_8888_GrPixelConfig;
-        case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
-            return kRGBA_1010102_GrPixelConfig;
-        case VK_FORMAT_R5G6B5_UNORM_PACK16:
-            return kRGB_565_GrPixelConfig;
-            break;
-        case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
-            // R4G4B4A4 is not required to be supported so we actually
-            // store RGBA_4444 data as B4G4R4A4.
-            return kRGBA_4444_GrPixelConfig;
-        case VK_FORMAT_R8_UNORM:
-            return kAlpha_8_GrPixelConfig;
-        case VK_FORMAT_R32G32B32A32_SFLOAT:
-            return kRGBA_float_GrPixelConfig;
-        case VK_FORMAT_R32G32_SFLOAT:
-            return kRG_float_GrPixelConfig;
-        case VK_FORMAT_R16G16B16A16_SFLOAT:
-            return kRGBA_half_GrPixelConfig;
-        case VK_FORMAT_R16_SFLOAT:
-            return kAlpha_half_GrPixelConfig;
-        default:
-            return kUnknown_GrPixelConfig;
-    }
-}
-
 bool GrVkFormatPixelConfigPairIsValid(VkFormat format, GrPixelConfig config) {
     switch (format) {
         case VK_FORMAT_R8G8B8A8_UNORM:
diff --git a/src/gpu/vk/GrVkUtil.h b/src/gpu/vk/GrVkUtil.h
index 71cc5d4e6a..7c56c6941f 100644
--- a/src/gpu/vk/GrVkUtil.h
+++ b/src/gpu/vk/GrVkUtil.h
@@ -33,11 +33,6 @@ class GrVkGpu;
  */
 bool GrPixelConfigToVkFormat(GrPixelConfig config, VkFormat* format);
 
-/**
-* Returns the GrPixelConfig for the given vulkan texture format
-*/
-GrPixelConfig GrVkFormatToPixelConfig(VkFormat format);
-
 bool GrVkFormatIsSupported(VkFormat);
 
 /**