VideoCaptureBufferPool: Refactor to allow support of non-ShMem backed buffers

media/video/capture/fake_video_capture_device.cc

 // 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.
 
 #include "media/video/capture/fake_video_capture_device.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 138 matching lines @@
                                   base::TimeTicks::Now());
   BeepAndScheduleNextCapture(
       base::Bind(&FakeVideoCaptureDevice::CaptureUsingOwnBuffers,
                  weak_factory_.GetWeakPtr()));
 }
 
 void FakeVideoCaptureDevice::CaptureUsingClientBuffers() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   const scoped_refptr<VideoCaptureDevice::Client::Buffer> capture_buffer =
-      client_->ReserveOutputBuffer(VideoFrame::I420,
+      client_->ReserveOutputBuffer(capture_format_.pixel_format,
                                    capture_format_.frame_size);
   DLOG_IF(ERROR, !capture_buffer) << "Couldn't allocate Capture Buffer";
   if (!capture_buffer)
     return;
 
   uint8_t* const data_ptr = static_cast<uint8_t*>(capture_buffer->data());
   memset(data_ptr, 0, capture_buffer->size());
   DCHECK(data_ptr) << "Buffer has NO backing memory";
 
   DrawPacman(false  /* use_argb */,
@@ skipping 35 matching lines @@
   // Generate a synchronized beep sound every so many frames.
   if (frame_count_++ % kFakeCaptureBeepCycle == 0)
     FakeAudioInputStream::BeepOnce();
 
   // Reschedule next CaptureTask.
   base::MessageLoop::current()->PostDelayedTask(FROM_HERE, next_capture,
       base::TimeDelta::FromMilliseconds(kFakeCapturePeriodMs));
 }
 
 }  // namespace media