Remove the AudioManager singleton.

content/renderer/media/webrtc_audio_device_unittest.cc

Index: content/renderer/media/webrtc_audio_device_unittest.cc
===================================================================
--- content/renderer/media/webrtc_audio_device_unittest.cc	(revision 114012)
+++ content/renderer/media/webrtc_audio_device_unittest.cc	(working copy)
@@ -157,39 +157,9 @@
 
 }  // end namespace
 
-// Utility class to delete the AudioManager.
-// TODO(tommi): Remove when we've fixed issue 105249.
-class AutoAudioManagerCleanup {
- public:
-  AutoAudioManagerCleanup() {
-    // Log an error if a previous test didn't clean up the AudioManager.
-    if (DeleteAndResurrect()) {
-      LOG(ERROR)
-          << "AudioManager singleton was not cleaned up by some previous test!";
-    }
-  }
-  ~AutoAudioManagerCleanup() {
-    DeleteAndResurrect();
-  }
-
- private:
-  // Returns true iff the AudioManager existed and was deleted.
-  bool DeleteAndResurrect() {
-    if (AudioManager::SingletonExists()) {
-      AudioManager::Destroy(NULL);
-      AudioManager::Resurrect();
-      return true;
-    }
-    return false;
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(AutoAudioManagerCleanup);
-};
-
 // Basic test that instantiates and initializes an instance of
 // WebRtcAudioDeviceImpl.
 TEST_F(WebRTCAudioDeviceTest, Construct) {
-  AutoAudioManagerCleanup audio_manager_cleanup;
   AudioUtilNoHardware audio_util(48000.0, 48000.0);
   SetAudioUtilCallback(&audio_util);
   scoped_refptr<WebRtcAudioDeviceImpl> audio_device(
@@ -212,8 +182,6 @@
 // verify that streaming starts correctly.
 // Disabled when running headless since the bots don't have the required config.
 TEST_F(WebRTCAudioDeviceTest, StartPlayout) {
-  AutoAudioManagerCleanup audio_manager_cleanup;
-
   if (IsRunningHeadless())
     return;
 
@@ -286,8 +254,6 @@
 // that the audio capturing starts as it should.
 // Disabled when running headless since the bots don't have the required config.
 TEST_F(WebRTCAudioDeviceTest, StartRecording) {
-  AutoAudioManagerCleanup audio_manager_cleanup;
-
   if (IsRunningHeadless())
     return;
 
@@ -355,8 +321,6 @@
 // Uses WebRtcAudioDeviceImpl to play a local wave file.
 // Disabled when running headless since the bots don't have the required config.
 TEST_F(WebRTCAudioDeviceTest, PlayLocalFile) {
-  AutoAudioManagerCleanup audio_manager_cleanup;
-
   if (IsRunningHeadless())
     return;
 
@@ -403,11 +367,16 @@
   EXPECT_EQ(0, file->StartPlayingFileLocally(ch, file_path.c_str(), false,
                                              webrtc::kFileFormatPcm16kHzFile));
 
+  // Play 2 seconds worth of audio and then quit.
   message_loop_.PostDelayedTask(FROM_HERE,
                                 MessageLoop::QuitClosure(),
-                                TestTimeouts::action_timeout_ms());
+                                2000);
   message_loop_.Run();
 
+
+  EXPECT_EQ(0, base->StopSend(ch));
+  EXPECT_EQ(0, base->StopPlayout(ch));
+  EXPECT_EQ(0, base->DeleteChannel(ch));
   EXPECT_EQ(0, base->Terminate());
 }
 
@@ -420,8 +389,6 @@
 // TODO(henrika): improve quality by using a wideband codec, enabling noise-
 // suppressions and perhaps also the digital AGC.
 TEST_F(WebRTCAudioDeviceTest, FullDuplexAudio) {
-  AutoAudioManagerCleanup audio_manager_cleanup;
-
   if (IsRunningHeadless())
     return;