gpu: enable FRAMBUFFER_SRGB on desktop

gpu/command_buffer/service/feature_info_unittest.cc

Index: gpu/command_buffer/service/feature_info_unittest.cc
diff --git a/gpu/command_buffer/service/feature_info_unittest.cc b/gpu/command_buffer/service/feature_info_unittest.cc
index bb616ac805b4041d3e6e31820aea1414b12d2cf4..e60be25d5f2a75f382c16f5a98acc521c9c52f56 100644
--- a/gpu/command_buffer/service/feature_info_unittest.cc
+++ b/gpu/command_buffer/service/feature_info_unittest.cc
@@ -1377,6 +1377,11 @@ TEST_P(FeatureInfoTest, InitializeARB_texture_rgNoFloat) {
   EXPECT_TRUE(info_->validators()->render_buffer_format.IsValid(GL_RG8_EXT));
 }
 
+TEST_P(FeatureInfoTest, InitializeARB_framebuffer_sRGB) {
+  SetupInitExpectations("GL_ARB_framebuffer_sRGB");
+  EXPECT_TRUE(info_->feature_flags().ext_framebuffer_srgb);
+}
+
 TEST_P(FeatureInfoTest, InitializeCHROMIUM_ycbcr_422_imageTrue) {
   SetupInitExpectations("GL_APPLE_ycbcr_422");
   EXPECT_TRUE(info_->feature_flags().chromium_image_ycbcr_422);