cc: Remove some unnecessary const scoped_refptr&.

cc/resources/video_resource_updater.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 CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_
 #define CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 65 matching lines @@
 // VideoResourceUpdater is used by the video system to produce frame content as
 // resources consumable by the compositor.
 class CC_EXPORT VideoResourceUpdater
     : public base::SupportsWeakPtr<VideoResourceUpdater> {
  public:
   VideoResourceUpdater(ContextProvider* context_provider,
                        ResourceProvider* resource_provider);
   ~VideoResourceUpdater();
 
   VideoFrameExternalResources CreateExternalResourcesFromVideoFrame(
-      const scoped_refptr<media::VideoFrame>& video_frame);
+      scoped_refptr<media::VideoFrame> video_frame);
 
  private:
   struct PlaneResource {
     unsigned resource_id;
     gfx::Size resource_size;
     ResourceFormat resource_format;
     gpu::Mailbox mailbox;
     // The balance between the number of times this resource has been returned
     // from CreateForSoftwarePlanes vs released in RecycleResource.
     int ref_count;
@@ skipping 21 matching lines @@
                                        PlaneResource* plane_resource);
 
   // This needs to be a container where iterators can be erased without
   // invalidating other iterators.
   typedef std::list<PlaneResource> ResourceList;
   ResourceList::iterator AllocateResource(const gfx::Size& plane_size,
                                           ResourceFormat format,
                                           bool has_mailbox,
                                           bool immutable_hint);
   void DeleteResource(ResourceList::iterator resource_it);
-  bool VerifyFrame(const scoped_refptr<media::VideoFrame>& video_frame);
-  void CopyPlaneTexture(const scoped_refptr<media::VideoFrame>& video_frame,
+  void CopyPlaneTexture(media::VideoFrame* video_frame,
                         const gpu::MailboxHolder& mailbox_holder,
                         VideoFrameExternalResources* external_resources);
   VideoFrameExternalResources CreateForHardwarePlanes(
-      const scoped_refptr<media::VideoFrame>& video_frame);
+      scoped_refptr<media::VideoFrame> video_frame);
   VideoFrameExternalResources CreateForSoftwarePlanes(
-      const scoped_refptr<media::VideoFrame>& video_frame);
+      scoped_refptr<media::VideoFrame> video_frame);
 
   static void RecycleResource(base::WeakPtr<VideoResourceUpdater> updater,
                               unsigned resource_id,
                               const gpu::SyncToken& sync_token,
                               bool lost_resource,
                               BlockingTaskRunner* main_thread_task_runner);
   static void ReturnTexture(base::WeakPtr<VideoResourceUpdater> updater,
                             const scoped_refptr<media::VideoFrame>& video_frame,
                             const gpu::SyncToken& sync_token,
                             bool lost_resource,
                             BlockingTaskRunner* main_thread_task_runner);
 
   ContextProvider* context_provider_;
   ResourceProvider* resource_provider_;
   scoped_ptr<media::SkCanvasVideoRenderer> video_renderer_;
   std::vector<uint8_t> upload_pixels_;
 
   // Recycle resources so that we can reduce the number of allocations and
   // data transfers.
   ResourceList all_resources_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoResourceUpdater);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_