Move common VideoPacket initialization into VideoEncoderHelper.

remoting/codec/video_encoder_verbatim.h

 // Copyright (c) 2011 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_CODEC_VIDEO_ENCODER_VERBATIM_H_
 #define REMOTING_CODEC_VIDEO_ENCODER_VERBATIM_H_
 
 #include "remoting/codec/video_encoder.h"
-#include "remoting/proto/video.pb.h"
-#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
+#include "remoting/codec/video_encoder_helper.h"
 
 namespace remoting {
 
 // VideoEncoderVerbatim implements a VideoEncoder that sends image data as a
 // sequence of RGB values, without compression.
 class VideoEncoderVerbatim : public VideoEncoder {
  public:
   VideoEncoderVerbatim();
   virtual ~VideoEncoderVerbatim();
 
   // VideoEncoder interface.
   virtual scoped_ptr<VideoPacket> Encode(
       const webrtc::DesktopFrame& frame) OVERRIDE;
 
  private:
-  // Allocates a buffer of the specified |size| inside |packet| and returns the
-  // pointer to it.
-  uint8* GetOutputBuffer(VideoPacket* packet, size_t size);
+  VideoEncoderHelper helper_;
 
-  // The most recent screen size. Used to detect screen size changes.
-  webrtc::DesktopSize screen_size_;
+  DISALLOW_COPY_AND_ASSIGN(VideoEncoderVerbatim);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CODEC_VIDEO_ENCODER_VERBATIM_H_