media: VideoFrame: add offset for shared memory buffers

content/common/gpu/media/gpu_video_encode_accelerator.cc

 // 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.
 
 #include "content/common/gpu/media/gpu_video_encode_accelerator.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
@@ skipping 260 matching lines @@
   uint8* shm_memory = reinterpret_cast<uint8*>(shm->memory());
   scoped_refptr<media::VideoFrame> frame =
       media::VideoFrame::WrapExternalPackedMemory(
           input_format_,
           input_coded_size_,
           gfx::Rect(input_visible_size_),
           input_visible_size_,
           shm_memory,
           buffer_size,
           buffer_handle,
+          0,
           base::TimeDelta(),
           // It's turtles all the way down...
           base::Bind(base::IgnoreResult(&base::MessageLoopProxy::PostTask),
                      base::MessageLoopProxy::current(),
                      FROM_HERE,
                      base::Bind(&GpuVideoEncodeAccelerator::EncodeFrameFinished,
                                 weak_this_factory_.GetWeakPtr(),
                                 frame_id,
                                 base::Passed(&shm))));
 
@@ skipping 60 matching lines @@
   stub_->channel()->Send(message);
 }
 
 void GpuVideoEncodeAccelerator::SendCreateEncoderReply(IPC::Message* message,
                                                        bool succeeded) {
   GpuCommandBufferMsg_CreateVideoEncoder::WriteReplyParams(message, succeeded);
   Send(message);
 }
 
 }  // namespace content