Remove implicit conversions from scoped_refptr to T* in media/

media/cast/sender/external_video_encoder_unittest.cc

Index: media/cast/sender/external_video_encoder_unittest.cc
diff --git a/media/cast/sender/external_video_encoder_unittest.cc b/media/cast/sender/external_video_encoder_unittest.cc
index 385b121695e99d866bb4a856f7271c5af475e517..064c9e0467beea128d2859ec23a0e55648cc33ff 100644
--- a/media/cast/sender/external_video_encoder_unittest.cc
+++ b/media/cast/sender/external_video_encoder_unittest.cc
@@ -117,7 +117,7 @@ class ExternalVideoEncoderTest : public ::testing::Test {
     gfx::Size size(video_config_.width, video_config_.height);
     video_frame_ = media::VideoFrame::CreateFrame(
         VideoFrame::I420, size, gfx::Rect(size), size, base::TimeDelta());
-    PopulateVideoFrame(video_frame_, 123);
+    PopulateVideoFrame(video_frame_.get(), 123);
 
     testing_clock_ = new base::SimpleTestTickClock();
     task_runner_ = new test::FakeSingleThreadTaskRunner(testing_clock_);