[Mojo Video Capture] Retire buffers when Android Chromium goes to the background

content/browser/renderer_host/media/video_capture_device_client_unittest.cc

 // Copyright 2015 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/capture/video/video_capture_device_client.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 24 matching lines @@
 namespace {
 
 class MockVideoCaptureController : public VideoCaptureController {
  public:
   explicit MockVideoCaptureController() : VideoCaptureController() {}
   ~MockVideoCaptureController() override {}
 
   MOCK_METHOD1(MockOnIncomingCapturedVideoFrame, void(const gfx::Size&));
   MOCK_METHOD0(OnError, void());
   MOCK_METHOD1(OnLog, void(const std::string& message));
-  MOCK_METHOD1(OnBufferDestroyed, void(int buffer_id_to_drop));
+  MOCK_METHOD1(OnBufferRetired, void(int buffer_id));
 
   void OnIncomingCapturedVideoFrame(
       media::VideoCaptureDevice::Client::Buffer buffer,
       scoped_refptr<media::VideoFrame> frame) override {
     MockOnIncomingCapturedVideoFrame(frame->coded_size());
   }
 };
 
 std::unique_ptr<media::VideoCaptureJpegDecoder> CreateGpuJpegDecoder(
     const media::VideoCaptureJpegDecoder::DecodeDoneCB& decode_done_cb) {
@@ skipping 193 matching lines @@
 
     EXPECT_EQ(coded_size.width(), size_and_rotation.output_resolution.width());
     EXPECT_EQ(coded_size.height(),
               size_and_rotation.output_resolution.height());
 
     Mock::VerifyAndClearExpectations(controller_.get());
   }
 }
 
 }  // namespace content