Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/renderer/media/audio_renderer_impl_unittest.cc

Index: chrome/renderer/media/audio_renderer_impl_unittest.cc
diff --git a/chrome/renderer/media/audio_renderer_impl_unittest.cc b/chrome/renderer/media/audio_renderer_impl_unittest.cc
index 2c0ee960c8f26c9a2156f65d8a11a08658088e0c..6dd3dc77e16fbdbada0d9d86e3f4891db8ae3241 100644
--- a/chrome/renderer/media/audio_renderer_impl_unittest.cc
+++ b/chrome/renderer/media/audio_renderer_impl_unittest.cc
@@ -127,7 +127,7 @@ TEST_F(AudioRendererImplTest, Stop) {
   renderer_->OnVolume(0.5);
 
   // It's possible that the upstream decoder replies right after being stopped.
-  scoped_refptr<media::Buffer> buffer = new media::DataBuffer(kSize);
+  scoped_refptr<media::Buffer> buffer(new media::DataBuffer(kSize));
   renderer_->ConsumeAudioSamples(buffer);
 }
 
@@ -152,7 +152,7 @@ TEST_F(AudioRendererImplTest, DestroyedMessageLoop_SetVolume) {
 TEST_F(AudioRendererImplTest, DestroyedMessageLoop_ConsumeAudioSamples) {
   // Kill the message loop and verify OnReadComplete() still works.
   message_loop_.reset();
-  scoped_refptr<media::Buffer> buffer = new media::DataBuffer(kSize);
+  scoped_refptr<media::Buffer> buffer(new media::DataBuffer(kSize));
   renderer_->ConsumeAudioSamples(buffer);
   EXPECT_CALL(stop_callback_, OnFilterCallback());
   renderer_->Stop(stop_callback_.NewCallback());