Switching audio clients to using RestartableAudioRendererSink interface as a sink.

media/audio/mock_render_callback.h

Index: media/audio/mock_render_callback.h
diff --git a/media/audio/mock_render_callback.h b/media/audio/mock_render_callback.h
new file mode 100644
index 0000000000000000000000000000000000000000..98e9384bace6e66ad76af37601928285b30d472d
--- /dev/null
+++ b/media/audio/mock_render_callback.h
@@ -0,0 +1,27 @@
+// Copyright (c) 2016 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.
+
+#ifndef MEDIA_AUDIO_MOCK_RENDERER_CALLBACK_H_
+#define MEDIA_AUDIO_MOCK_RENDERER_CALLBACK_H_
+
+#include "media/base/audio_renderer_sink.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace media {
+
+class MockRenderCallback : public AudioRendererSink::RenderCallback {
+ public:
+  MockRenderCallback();
+  virtual ~MockRenderCallback();
+
+  MOCK_METHOD3(Render,
+               int(AudioBus* dest,
+                   uint32_t audio_delay_milliseconds,
+                   uint32_t frames_skipped));
+  MOCK_METHOD0(OnRenderError, void());
+};
+
+}  // namespace media
+
+#endif  // MEDIA_AUDIO_MOCK_RENDERER_CALLBACK_H_