Remove calls to MessageLoop::Run/RunUntilIdle.

media/audio/android/audio_android_unittest.cc

Index: media/audio/android/audio_android_unittest.cc
diff --git a/media/audio/android/audio_android_unittest.cc b/media/audio/android/audio_android_unittest.cc
index 510277382dd53442c08613b86d6a58218f8efcc1..56a3d420d1f53afcd86155dde61ead681a5ef133 100644
--- a/media/audio/android/audio_android_unittest.cc
+++ b/media/audio/android/audio_android_unittest.cc
@@ -421,12 +421,12 @@ class AudioAndroidOutputTest : public testing::Test {
         audio_manager_(AudioManager::CreateForTesting(loop_->task_runner())),
         audio_output_stream_(NULL) {
     // Flush the message loop to ensure that AudioManager is fully initialized.
-    loop_->RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
   ~AudioAndroidOutputTest() override {
     audio_manager_.reset();
-    loop_->RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
  protected: