Converted VideoFrameCapturer callbacks into a VideoFrameCapturer::Delegate interface.

remoting/host/video_frame_capturer_fake.h

 // Copyright (c) 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 REMOTING_HOST_VIDEO_FRAME_CAPTURER_FAKE_H_
 #define REMOTING_HOST_VIDEO_FRAME_CAPTURER_FAKE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "remoting/host/video_frame_capturer.h"
 #include "remoting/host/video_frame_capturer_helper.h"
 
 namespace remoting {
 
 // A VideoFrameCapturerFake generates artificial image for testing purpose.
 //
 // VideoFrameCapturerFake is double-buffered as required by VideoFrameCapturer.
 // See remoting/host/video_frame_capturer.h.
 class VideoFrameCapturerFake : public VideoFrameCapturer {
  public:
   VideoFrameCapturerFake();
   virtual ~VideoFrameCapturerFake();
 
   // Overridden from VideoFrameCapturer:
-  virtual void Start(
-      const CursorShapeChangedCallback& callback) OVERRIDE;
+  virtual void Start(Delegate* delegate) OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual media::VideoFrame::Format pixel_format() const OVERRIDE;
   virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE;
-  virtual void CaptureInvalidRegion(
-      const CaptureCompletedCallback& callback) OVERRIDE;
+  virtual void CaptureInvalidRegion() OVERRIDE;
   virtual const SkISize& size_most_recent() const OVERRIDE;
 
  private:
   // Generates an image in the front buffer.
   void GenerateImage();
 
   // Called when the screen configuration is changed.
   void ScreenConfigurationChanged();
 
+  Delegate* delegate_;
+
   SkISize size_;
   int bytes_per_row_;
   int box_pos_x_;
   int box_pos_y_;
   int box_speed_x_;
   int box_speed_y_;
 
   VideoFrameCapturerHelper helper_;
 
   // We have two buffers for the screen images as required by Capturer.
   static const int kNumBuffers = 2;
   scoped_array<uint8> buffers_[kNumBuffers];
 
   // The current buffer with valid data for reading.
   int current_buffer_;
 
   // Format of pixels returned in buffer.
   media::VideoFrame::Format pixel_format_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoFrameCapturerFake);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_VIDEO_FRAME_CAPTURER_FAKE_H_