Revert of MediaStream audio: Refactor 3 separate "glue" implementations into one.

content/renderer/media/mock_audio_device_factory.h

Index: content/renderer/media/mock_audio_device_factory.h
diff --git a/content/renderer/media/mock_audio_device_factory.h b/content/renderer/media/mock_audio_device_factory.h
deleted file mode 100644
index 62f2bea442b101cbea962adc74687d0902c4b531..0000000000000000000000000000000000000000
--- a/content/renderer/media/mock_audio_device_factory.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 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 CONTENT_RENDERER_MEDIA_MOCK_AUDIO_DEVICE_FACTORY_H_
-#define CONTENT_RENDERER_MEDIA_MOCK_AUDIO_DEVICE_FACTORY_H_
-
-#include "content/renderer/media/audio_device_factory.h"
-
-#include "media/base/audio_capturer_source.h"
-#include "media/base/audio_renderer_sink.h"
-#include "testing/gmock/include/gmock/gmock.h"
-
-namespace content {
-
-// MockAudioDeviceFactory creates an instance of this.
-class MockCapturerSource : public media::AudioCapturerSource {
- public:
-  MockCapturerSource();
-  MOCK_METHOD3(Initialize, void(const media::AudioParameters& params,
-                                CaptureCallback* callback,
-                                int session_id));
-  MOCK_METHOD0(Start, void());
-  MOCK_METHOD0(Stop, void());
-  MOCK_METHOD1(SetAutomaticGainControl, void(bool enable));
-  void SetVolume(double volume) override;
-
- protected:
-  ~MockCapturerSource() override;
-};
-
-// Creates one MockCapturerSource instance for unit testing. This replaces the
-// need for unit tests to open a real platform audio output. Instantiating this
-// class sets the global content::AudioDeviceFactory implementation to |this|.
-class MockAudioDeviceFactory : public AudioDeviceFactory {
- public:
-  MockAudioDeviceFactory();
-  ~MockAudioDeviceFactory() override;
-
-  // Returns the MockCapturerSource created by this factory.
-  const scoped_refptr<MockCapturerSource>& mock_capturer_source() const {
-    return mock_capturer_source_;
-  }
-
-  // These methods are just mocked because tests currently don't need them to be
-  // implemented.
-  MOCK_METHOD4(CreateFinalAudioRendererSink,
-               scoped_refptr<media::AudioRendererSink>(
-                   int render_frame_id,
-                   int sesssion_id,
-                   const std::string& device_id,
-                   const url::Origin& security_origin));
-  MOCK_METHOD5(CreateAudioRendererSink,
-               scoped_refptr<media::AudioRendererSink>(
-                   SourceType source_type,
-                   int render_frame_id,
-                   int sesssion_id,
-                   const std::string& device_id,
-                   const url::Origin& security_origin));
-  MOCK_METHOD5(CreateSwitchableAudioRendererSink,
-               scoped_refptr<media::SwitchableAudioRendererSink>(
-                   SourceType source_type,
-                   int render_frame_id,
-                   int sesssion_id,
-                   const std::string& device_id,
-                   const url::Origin& security_origin));
-
-  // Returns mock_capturer_source_ once. If called a second time, the process
-  // will crash.
-  scoped_refptr<media::AudioCapturerSource> CreateAudioCapturerSource(
-      int render_frame_id) override;
-
- private:
-  scoped_refptr<MockCapturerSource> mock_capturer_source_;
-  bool did_create_once_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockAudioDeviceFactory);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_MEDIA_AUDIO_DEVICE_FACTORY_H_