Moving SwitchOutputDevice out of OutputDevice interface, eliminating OutputDevice

media/base/mock_audio_renderer_sink.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/base/mock_audio_renderer_sink.h"
 #include "media/base/fake_output_device.h"
 
 namespace media {
 MockAudioRendererSink::MockAudioRendererSink()
     : MockAudioRendererSink(OUTPUT_DEVICE_STATUS_OK) {}
 
 MockAudioRendererSink::MockAudioRendererSink(OutputDeviceStatus device_status)
-    : output_device_(new FakeOutputDevice(device_status)) {}
+    : device_factory_(nullptr),
+      output_device_(new FakeOutputDevice(std::string(), device_status)) {}
+
+MockAudioRendererSink::MockAudioRendererSink(const std::string& device_id,
+                                             OutputDeviceStatus device_status)
+    : device_factory_(nullptr),
+      output_device_(new FakeOutputDevice(device_id, device_status)) {}
+
+MockAudioRendererSink::MockAudioRendererSink(
+    const std::string& device_id,
+    OutputDeviceStatus device_status,
+    const AudioParameters& device_output_params)
+    : device_factory_(nullptr),
+      output_device_(new FakeOutputDevice(device_id,
+                                          device_status,
+                                          device_output_params)) {}
+
+MockAudioRendererSink::MockAudioRendererSink(
+    FakeOutputDeviceFactory* device_factory,
+    const std::string& device_id)
+    : device_factory_(device_factory),
+      output_device_(device_factory_->NewFakeOutputDevice(device_id)) {}
 
 MockAudioRendererSink::~MockAudioRendererSink() {}
 
+void MockAudioRendererSink::SwitchOutputDevice(
+    const std::string& device_id,
+    const url::Origin& security_origin,
+    const SwitchOutputDeviceCB& callback) {
+  // NB: output device won't be changed if no factory is provided at
+  // construction time.
+  if (device_factory_)
+    output_device_.reset(device_factory_->NewFakeOutputDevice(device_id));
+  callback.Run(output_device_->GetDeviceStatus());
+}
+
 void MockAudioRendererSink::Initialize(const AudioParameters& params,
                                        RenderCallback* renderer) {
   callback_ = renderer;
 }
 
 OutputDevice* MockAudioRendererSink::GetOutputDevice() {
   return output_device_.get();
 }
 
 }  // namespace media