Improve GL shader YUV adjustment.

cc/layers/video_layer_impl.h

 // Copyright 2012 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 CC_LAYERS_VIDEO_LAYER_IMPL_H_
 #define CC_LAYERS_VIDEO_LAYER_IMPL_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 48 matching lines @@
   scoped_refptr<VideoFrameProviderClientImpl> provider_client_impl_;
 
   scoped_refptr<media::VideoFrame> frame_;
 
   media::VideoRotation video_rotation_;
 
   std::unique_ptr<VideoResourceUpdater> updater_;
   VideoFrameExternalResources::ResourceType frame_resource_type_;
   float frame_resource_offset_;
   float frame_resource_multiplier_;
+  int frame_bits_per_channel_;
 
   struct FrameResource {
     FrameResource(ResourceId id,
                   gfx::Size size_in_pixels,
                   bool is_overlay_candidate)
         : id(id),
           size_in_pixels(size_in_pixels),
           is_overlay_candidate(is_overlay_candidate) {}
     ResourceId id;
     gfx::Size size_in_pixels;
     bool is_overlay_candidate;
   };
   std::vector<FrameResource> frame_resources_;
 
   // TODO(danakj): Remove these, hide software path inside ResourceProvider and
   // ExternalResource (aka TextureMailbox) classes.
   std::vector<unsigned> software_resources_;
   // Called once for each software resource.
   ReleaseCallbackImpl software_release_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_VIDEO_LAYER_IMPL_H_