Add CHROMIUM_ycbcr_422_image extension.

gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h

Index: gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
diff --git a/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h b/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
index 0196461dc5af4da18e23455dbbabcc724b9969de..138a8896df963d4b7115f529efff70253ce0ce2d 100644
--- a/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
+++ b/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
@@ -253,6 +253,9 @@ static const GLES2Util::EnumToString enum_to_string_table[] = {
         0x8A53, "GL_SYNC_OBJECT_APPLE",
     },
     {
+        0x78FB, "GL_RGB_YCBCR_422_CHROMIUM",
+    },
+    {
         0x8DF8, "GL_SHADER_BINARY_FORMATS",
     },
     {
@@ -3919,6 +3922,7 @@ std::string GLES2Util::GetStringImageInternalFormat(uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_RGB, "GL_RGB"},
       {GL_RGB_YUV_420_CHROMIUM, "GL_RGB_YUV_420_CHROMIUM"},
+      {GL_RGB_YCBCR_422_CHROMIUM, "GL_RGB_YCBCR_422_CHROMIUM"},
       {GL_RGBA, "GL_RGBA"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,