Remove implicit conversions from scoped_refptr to T* in media/

media/base/audio_renderer_mixer_unittest.cc

Index: media/base/audio_renderer_mixer_unittest.cc
diff --git a/media/base/audio_renderer_mixer_unittest.cc b/media/base/audio_renderer_mixer_unittest.cc
index cb58a0385580552df496d52609c253fcd1508b1c..6cca1ddb9678694420ca0a80a8adb6897c7c9bdc 100644
--- a/media/base/audio_renderer_mixer_unittest.cc
+++ b/media/base/audio_renderer_mixer_unittest.cc
@@ -51,8 +51,8 @@ class AudioRendererMixerTest
         std::tr1::get<1>(GetParam()), 16, kLowLatencyBufferSize);
 
     sink_ = new MockAudioRendererSink();
-    EXPECT_CALL(*sink_, Start());
-    EXPECT_CALL(*sink_, Stop());
+    EXPECT_CALL(*sink_.get(), Start());
+    EXPECT_CALL(*sink_.get(), Stop());
 
     mixer_.reset(new AudioRendererMixer(
         input_parameters_, output_parameters_, sink_));