Add VideoPacket struct for video packets. Refactor Decode interface to use it.

remoting/base/capture_data.cc

 // Copyright (c) 2010 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.
 
 #include "remoting/base/capture_data.h"
 
 namespace remoting {
 
 DataPlanes::DataPlanes() {
   for (int i = 0; i < kPlaneCount; ++i) {
     data[i] = NULL;
     strides[i] = 0;
   }
 }
 
 CaptureData::CaptureData(const DataPlanes &data_planes,
                          int width,
                          int height,
-                         PixelFormat format) :
+                         media::VideoFrame::Format format) :
     data_planes_(data_planes), dirty_rects_(),
     width_(width), height_(height), pixel_format_(format) {
 }
 
 CaptureData::~CaptureData() {}
 
 }  // namespace remoting