Update from https://crrev.com/306655

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 636e797900b85e7386efbd3e558e87f6fe09869a..fe7cc003ddf1c76bc5dc56849122e2e27e07bcdb 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -76,6 +76,7 @@ GLenum TextureToStorageFormat(ResourceFormat format) {
     case LUMINANCE_8:
     case RGB_565:
     case ETC1:
+    case RED_8:
       NOTREACHED();
       break;
   }
@@ -94,6 +95,7 @@ bool IsFormatSupportedForStorage(ResourceFormat format, bool use_bgra) {
     case LUMINANCE_8:
     case RGB_565:
     case ETC1:
+    case RED_8:
       return false;
   }
   return false;
@@ -125,6 +127,7 @@ gfx::GpuMemoryBuffer::Format ToGpuMemoryBufferFormat(ResourceFormat format) {
     case LUMINANCE_8:
     case RGB_565:
     case ETC1:
+    case RED_8:
       break;
   }
   NOTREACHED();
@@ -1216,6 +1219,7 @@ ResourceProvider::ResourceProvider(
       use_texture_format_bgra_(false),
       use_texture_usage_hint_(false),
       use_compressed_texture_etc1_(false),
+      yuv_resource_format_(LUMINANCE_8),
       max_texture_size_(0),
       best_texture_format_(RGBA_8888),
       use_rgba_4444_texture_format_(use_rgba_4444_texture_format),
@@ -1254,6 +1258,7 @@ void ResourceProvider::InitializeGL() {
   use_texture_format_bgra_ = caps.gpu.texture_format_bgra8888;
   use_texture_usage_hint_ = caps.gpu.texture_usage;
   use_compressed_texture_etc1_ = caps.gpu.texture_format_etc1;
+  yuv_resource_format_ = caps.gpu.texture_rg ? RED_8 : LUMINANCE_8;
   use_sync_query_ = caps.gpu.sync_query;
 
   GLES2Interface* gl = ContextGL();