media: replace LUMINANCE_F16 by RG_88 for 9/10-bit h264 videos

cc/resources/video_resource_updater_unittest.cc

Index: cc/resources/video_resource_updater_unittest.cc
diff --git a/cc/resources/video_resource_updater_unittest.cc b/cc/resources/video_resource_updater_unittest.cc
index 9b9dcfccf9ab60ef7b9df11c429d745bd2b6ce9f..1d8dad7aab23a5336c29c631baad5cb465114c1c 100644
--- a/cc/resources/video_resource_updater_unittest.cc
+++ b/cc/resources/video_resource_updater_unittest.cc
@@ -253,7 +253,7 @@ TEST_F(VideoResourceUpdaterTest, SoftwareFrame) {
   EXPECT_EQ(VideoFrameExternalResources::YUV_RESOURCE, resources.type);
 }
 
-TEST_F(VideoResourceUpdaterTest, HighBitFrameNoF16) {
+TEST_F(VideoResourceUpdaterTest, HighBitFrameNo16bitTexture) {
   VideoResourceUpdater updater(context_provider_.get(),
                                resource_provider3d_.get());
   scoped_refptr<media::VideoFrame> video_frame = CreateTestHighBitFrame();
@@ -290,6 +290,23 @@ TEST_F(VideoResourceUpdaterTestWithF16, HighBitFrame) {
   EXPECT_NEAR(resources2.offset, 0.5, 0.1);
 }
 
+class VideoResourceUpdaterTestWithRG : public VideoResourceUpdaterTest {
+ public:
+  VideoResourceUpdaterTestWithRG() : VideoResourceUpdaterTest() {
+    context3d_->set_support_texture_rg(true);
+  }
+};
+
+TEST_F(VideoResourceUpdaterTestWithRG, HighBitFrame) {
+  VideoResourceUpdater updater(context_provider_.get(),
+                               resource_provider3d_.get());
+  scoped_refptr<media::VideoFrame> video_frame = CreateTestHighBitFrame();
+
+  VideoFrameExternalResources resources =
+      updater.CreateExternalResourcesFromVideoFrame(video_frame);
+  EXPECT_EQ(VideoFrameExternalResources::YUV_RESOURCE, resources.type);
+}
+
 TEST_F(VideoResourceUpdaterTest, HighBitFrameSoftwareCompositor) {
   VideoResourceUpdater updater(nullptr, resource_provider_software_.get());
   scoped_refptr<media::VideoFrame> video_frame = CreateTestHighBitFrame();