Integrate VDA with WebRTC.

media/video/mock_video_decode_accelerator.cc

Index: media/video/mock_video_decode_accelerator.cc
diff --git a/media/video/mock_video_decode_accelerator.cc b/media/video/mock_video_decode_accelerator.cc
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+++ b/media/video/mock_video_decode_accelerator.cc
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+// Copyright (c) 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 "media/video/mock_video_decode_accelerator.h"
+
+namespace media {
+
+using ::testing::Invoke;
+
+MockVideoDecodeAccelerator::MockVideoDecodeAccelerator() {
+  // Delete |this| when Destroy() is called.
+  ON_CALL(*this, Destroy())
+      .WillByDefault(Invoke(this, &MockVideoDecodeAccelerator::DeleteThis));
+}
+
+MockVideoDecodeAccelerator::~MockVideoDecodeAccelerator() {}
+
+void MockVideoDecodeAccelerator::DeleteThis() { delete this; }
+
+}  // namespace media