Fix perf and paint issues with VRI::PaintSingleFrame.

media/renderers/video_renderer_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_
 #define MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 268 matching lines @@
   // call.
   int64_t last_video_memory_usage_;
 
   // Indicates if a frame has been processed by CheckForMetadataChanges().
   bool have_renderered_frames_;
 
   // Tracks last frame properties to detect and notify client of any changes.
   gfx::Size last_frame_natural_size_;
   bool last_frame_opaque_;
 
+  // Indicates if we've painted the first valid frame after StartPlayingFrom().
+  bool painted_first_frame_;
+
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<VideoRendererImpl> weak_factory_;
 
   // Weak factory used to invalidate certain queued callbacks on reset().
   // This is useful when doing video frame copies asynchronously since we
   // want to discard video frames that might be received after the stream has
   // been reset.
   base::WeakPtrFactory<VideoRendererImpl> frame_callback_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_