Chromecast: Add a way to notify video plane about resolution changes

chromecast/media/cma/backend/video_plane_fake_factory.cc

Index: chromecast/media/cma/backend/video_plane_fake_factory.cc
diff --git a/chromecast/media/cma/backend/video_plane_fake_factory.cc b/chromecast/media/cma/backend/video_plane_fake_factory.cc
index 234500915632f385d1dd624e5fb800dca2986877..6f48645e043c44fd8a858c1982dd020edb3faf2d 100644
--- a/chromecast/media/cma/backend/video_plane_fake_factory.cc
+++ b/chromecast/media/cma/backend/video_plane_fake_factory.cc
@@ -7,9 +7,9 @@
 namespace chromecast {
 namespace media {
 
-// Global accessor to the video plane.
-VideoPlane* GetVideoPlane() {
-  return VideoPlaneFake::GetInstance();
+// static
+scoped_ptr<VideoPlane> VideoPlaneFactory::CreatePlatformVideoPlane() {
+  return scoped_ptr<VideoPlane>(new VideoPlaneFake());
 }
 
 }  // namespace media