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

content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc

Index: content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
diff --git a/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc b/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
index 64cd844f194de268e74c4bd70da374f111564066..982291bdbf87f839095750eb6ef280046a406784 100644
--- a/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
+++ b/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
@@ -9,7 +9,11 @@
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/renderer/media/mock_peer_connection_impl.h"
+#include "content/renderer/media/webaudio_capturer_source.h"
+#include "content/renderer/media/webrtc/webrtc_local_audio_track_adapter.h"
 #include "content/renderer/media/webrtc/webrtc_video_capturer_adapter.h"
+#include "content/renderer/media/webrtc_audio_capturer.h"
+#include "content/renderer/media/webrtc_local_audio_track.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
 #include "third_party/webrtc/api/mediastreaminterface.h"
 #include "third_party/webrtc/base/scoped_ref_ptr.h"
@@ -376,9 +380,7 @@
 
 MockPeerConnectionDependencyFactory::MockPeerConnectionDependencyFactory()
     : PeerConnectionDependencyFactory(NULL),
-      signaling_thread_("MockPCFactory WebRtc Signaling Thread") {
-  EnsureWebRtcAudioDeviceImpl();
-  CHECK(signaling_thread_.Start());
+      fail_to_create_next_audio_capturer_(false) {
 }
 
 MockPeerConnectionDependencyFactory::~MockPeerConnectionDependencyFactory() {}
@@ -413,6 +415,9 @@
   NOTIMPLEMENTED();
   return nullptr;
 }
+
+void MockPeerConnectionDependencyFactory::CreateWebAudioSource(
+    blink::WebMediaStreamSource* source) {}
 
 scoped_refptr<webrtc::MediaStreamInterface>
 MockPeerConnectionDependencyFactory::CreateLocalMediaStream(
@@ -453,9 +458,19 @@
   return new MockIceCandidate(sdp_mid, sdp_mline_index, sdp);
 }
 
-scoped_refptr<base::SingleThreadTaskRunner>
-MockPeerConnectionDependencyFactory::GetWebRtcSignalingThread() const {
-  return signaling_thread_.task_runner();
+std::unique_ptr<WebRtcAudioCapturer>
+MockPeerConnectionDependencyFactory::CreateAudioCapturer(
+    int render_frame_id,
+    const StreamDeviceInfo& device_info,
+    const blink::WebMediaConstraints& constraints,
+    MediaStreamAudioSource* audio_source) {
+  if (fail_to_create_next_audio_capturer_) {
+    fail_to_create_next_audio_capturer_ = false;
+    return NULL;
+  }
+  DCHECK(audio_source);
+  return WebRtcAudioCapturer::CreateCapturer(-1, device_info, constraints, NULL,
+                                             audio_source);
 }
 
 }  // namespace content