Expose a way for unit tests to terminate the AudioManager singleton to avoid conflicts between te...

media/audio/audio_manager.cc

Index: media/audio/audio_manager.cc
===================================================================
--- media/audio/audio_manager.cc	(revision 111338)
+++ media/audio/audio_manager.cc	(working copy)
@@ -32,3 +32,13 @@
   }
   return g_audio_manager;
 }
+
+// static
+bool AudioManager::SingletonExists() {
+  return g_audio_manager != NULL;
+}
+
+// static
+void AudioManager::Resurrect() {
+  g_destroy_called = false;
+}