Re-write many calls to WrapUnique() with MakeUnique()

media/muxers/webm_muxer_unittest.cc

Index: media/muxers/webm_muxer_unittest.cc
diff --git a/media/muxers/webm_muxer_unittest.cc b/media/muxers/webm_muxer_unittest.cc
index d71e0b9ff252d7783ac11d46bba5c5b6447058d9..75a698a87224f5100d638c85187eb01abbb1214a 100644
--- a/media/muxers/webm_muxer_unittest.cc
+++ b/media/muxers/webm_muxer_unittest.cc
@@ -158,7 +158,7 @@ TEST_P(WebmMuxerTest, OnEncodedAudioTwoFrames) {
       .WillRepeatedly(
           WithArgs<0>(Invoke(this, &WebmMuxerTest::SaveEncodedDataLen)));
   webm_muxer_.OnEncodedAudio(audio_params,
-                             base::WrapUnique(new std::string(encoded_data)),
+                             base::MakeUnique<std::string>(encoded_data),
                              base::TimeTicks::Now());
 
   // First time around WriteCallback() is pinged a number of times to write the
@@ -174,7 +174,7 @@ TEST_P(WebmMuxerTest, OnEncodedAudioTwoFrames) {
       .WillRepeatedly(
           WithArgs<0>(Invoke(this, &WebmMuxerTest::SaveEncodedDataLen)));
   webm_muxer_.OnEncodedAudio(audio_params,
-                             base::WrapUnique(new std::string(encoded_data)),
+                             base::MakeUnique<std::string>(encoded_data),
                              base::TimeTicks::Now());
 
   // The second time around the callbacks should include a SimpleBlock header,