Add ContentVideoViewOverlay to AVDA.

media/gpu/avda_picture_buffer_manager.h

Index: media/gpu/avda_picture_buffer_manager.h
diff --git a/media/gpu/avda_picture_buffer_manager.h b/media/gpu/avda_picture_buffer_manager.h
index 76c7ba3d3ebc9265382ee23b0b6067b674787afa..6fddb40efba3755eb68aa6f2911bdb9677812181 100644
--- a/media/gpu/avda_picture_buffer_manager.h
+++ b/media/gpu/avda_picture_buffer_manager.h
@@ -49,7 +49,9 @@ class MEDIA_GPU_EXPORT AVDAPictureBufferManager {
   // May be called multiple times to switch to a new |surface_id|. Picture
   // buffers will be updated to use the new surface during the call to
   // UseCodecBufferForPictureBuffer().
-  gl::ScopedJavaSurface Initialize(int surface_id);
+  // TODO(liberato); update comment.
+  void InitializeForOverlay();
+  gl::ScopedJavaSurface InitializeForSurfaceTexture();
 
   void Destroy(const PictureBufferMap& buffers);