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..310c8bc878a34e2ebe414706d43054f7ffe61ca4 100644
--- a/chromecast/media/cma/backend/video_plane_fake_factory.cc
+++ b/chromecast/media/cma/backend/video_plane_fake_factory.cc
@@ -7,9 +7,8 @@
 namespace chromecast {
 namespace media {
 
-// Global accessor to the video plane.
-VideoPlane* GetVideoPlane() {
-  return VideoPlaneFake::GetInstance();
+scoped_ptr<VideoPlane> CreateVideoPlane() {
+  return make_scoped_ptr(new VideoPlaneFake());
 }
 
 }  // namespace media