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

content/renderer/media/user_media_client_impl_unittest.cc

Index: content/renderer/media/user_media_client_impl_unittest.cc
diff --git a/content/renderer/media/user_media_client_impl_unittest.cc b/content/renderer/media/user_media_client_impl_unittest.cc
index 500dea753caa7cad5e516b48833d811f7facdfb7..749b9866558a3d6cfd4dfdbb07d00bec2834c704 100644
--- a/content/renderer/media/user_media_client_impl_unittest.cc
+++ b/content/renderer/media/user_media_client_impl_unittest.cc
@@ -62,7 +62,6 @@
         result_(NUM_MEDIA_REQUEST_RESULTS),
         result_name_(""),
         factory_(dependency_factory),
-        create_source_that_fails_(false),
         video_source_(NULL) {}
 
   void RequestUserMedia(const blink::WebUserMediaRequest& user_media_request) {
@@ -127,32 +126,6 @@
     last_sources_ = sources;
   }
 
-  void SetCreateSourceThatFails(bool should_fail) {
-    create_source_that_fails_ = should_fail;
-  }
-
-  MediaStreamAudioSource* CreateAudioSource(
-      const StreamDeviceInfo& device,
-      const blink::WebMediaConstraints& constraints) override {
-    MediaStreamAudioSource* source;
-    if (create_source_that_fails_) {
-      class FailedAtLifeAudioSource : public MediaStreamAudioSource {
-       public:
-        FailedAtLifeAudioSource() : MediaStreamAudioSource(true) {}
-        ~FailedAtLifeAudioSource() override {}
-       protected:
-        bool EnsureSourceIsStarted() override {
-          return false;
-        }
-      };
-      source = new FailedAtLifeAudioSource();
-    } else {
-      source = new MediaStreamAudioSource(true);
-    }
-    source->SetDeviceInfo(device);
-    return source;
-  }
-
   MediaStreamVideoSource* CreateVideoSource(
       const StreamDeviceInfo& device,
       const MediaStreamSource::SourceStoppedCallback& stop_callback) override {
@@ -206,7 +179,6 @@
   blink::WebVector<blink::WebMediaDeviceInfo> last_devices_;
   blink::WebVector<blink::WebSourceInfo> last_sources_;
   PeerConnectionDependencyFactory* factory_;
-  bool create_source_that_fails_;
   MockMediaStreamVideoCapturerSource* video_source_;
 };
 
@@ -296,6 +268,11 @@
         used_media_impl_->last_created_video_source();
     if (video_source->SourceHasAttemptedToStart())
       video_source->FailToStartMockedSource();
+    blink::WebHeap::collectGarbageForTesting();
+  }
+
+  void FailToCreateNextAudioCapturer() {
+    dependency_factory_->FailToCreateNextAudioCapturer();
     blink::WebHeap::collectGarbageForTesting();
   }
 
@@ -475,7 +452,7 @@
 
 // This test what happens if an audio source fail to initialize.
 TEST_F(UserMediaClientImplTest, MediaAudioSourceFailToInitialize) {
-  used_media_impl_->SetCreateSourceThatFails(true);
+  FailToCreateNextAudioCapturer();
   used_media_impl_->RequestUserMedia();
   FakeMediaStreamDispatcherRequestUserMediaComplete();
   StartMockedVideoSource();