Connect the new video rendering path to the compositor.

media/base/media_switches.cc

Index: media/base/media_switches.cc
diff --git a/media/base/media_switches.cc b/media/base/media_switches.cc
index 43904123893639c8543d56306975e8245e0a9665..6cb46eb82c6573e30037735bb568f3e561cbd3a0 100644
--- a/media/base/media_switches.cc
+++ b/media/base/media_switches.cc
@@ -9,6 +9,9 @@ namespace switches {
 // Allow users to specify a custom buffer size for debugging purpose.
 const char kAudioBufferSize[] = "audio-buffer-size";
 
+// Enables the new vsync driven video renderering path.
+const char kEnableNewVideoRenderer[] = "enable-new-video-renderer";
+
 // Set number of threads to use for video decoding.
 const char kVideoThreads[] = "video-threads";