Remove parts of //cc we aren't using

cc/layers/video_frame_provider_client_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 CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_
-#define CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_checker.h"
-#include "cc/layers/video_frame_provider.h"
-#include "ui/gfx/transform.h"
-
-namespace media { class VideoFrame; }
-
-namespace cc {
-class VideoLayerImpl;
-
-class VideoFrameProviderClientImpl
-    : public VideoFrameProvider::Client,
-      public base::RefCounted<VideoFrameProviderClientImpl> {
- public:
-  static scoped_refptr<VideoFrameProviderClientImpl> Create(
-      VideoFrameProvider* provider);
-
-  VideoLayerImpl* active_video_layer() { return active_video_layer_; }
-  void SetActiveVideoLayer(VideoLayerImpl* video_layer);
-
-  void Stop();
-  bool Stopped();
-
-  scoped_refptr<media::VideoFrame> AcquireLockAndCurrentFrame();
-  void PutCurrentFrame(const scoped_refptr<media::VideoFrame>& frame);
-  void ReleaseLock();
-  const gfx::Transform& stream_texture_matrix() const {
-    return stream_texture_matrix_;
-  }
-
-  // VideoFrameProvider::Client implementation. These methods are all callable
-  // on any thread.
-  void StopUsingProvider() override;
-  void DidReceiveFrame() override;
-  void DidUpdateMatrix(const float* matrix) override;
-
- private:
-  explicit VideoFrameProviderClientImpl(VideoFrameProvider* provider);
-  friend class base::RefCounted<VideoFrameProviderClientImpl>;
-  ~VideoFrameProviderClientImpl() override;
-
-  VideoLayerImpl* active_video_layer_;
-
-  // Guards the destruction of provider_ and the frame that it provides
-  base::Lock provider_lock_;
-  VideoFrameProvider* provider_;
-  base::ThreadChecker thread_checker_;
-
-  gfx::Transform stream_texture_matrix_;
-
-  DISALLOW_COPY_AND_ASSIGN(VideoFrameProviderClientImpl);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_VIDEO_FRAME_PROVIDER_CLIENT_IMPL_H_