Remove reference counting from media::DemuxerStream and friends.

media/filters/decrypting_video_decoder_unittest.cc

Index: media/filters/decrypting_video_decoder_unittest.cc
diff --git a/media/filters/decrypting_video_decoder_unittest.cc b/media/filters/decrypting_video_decoder_unittest.cc
index db51ff282704b6696468211ca535b0a69813d785..efa9fdb34d08f56848c8d4eab3c79bf221b452d0 100644
--- a/media/filters/decrypting_video_decoder_unittest.cc
+++ b/media/filters/decrypting_video_decoder_unittest.cc
@@ -96,7 +96,7 @@ class DecryptingVideoDecoderTest : public testing::Test {
     EXPECT_CALL(*this, RequestDecryptorNotification(_))
         .WillOnce(RunCallbackIfNotNull(decryptor_.get()));
 
-    decoder_->Initialize(demuxer_, NewExpectedStatusCB(status),
+    decoder_->Initialize(demuxer_.get(), NewExpectedStatusCB(status),
                          base::Bind(&MockStatisticsCB::OnStatistics,
                                     base::Unretained(&statistics_cb_)));
     message_loop_.RunUntilIdle();
@@ -237,7 +237,7 @@ class DecryptingVideoDecoderTest : public testing::Test {
   base::MessageLoop message_loop_;
   scoped_ptr<DecryptingVideoDecoder> decoder_;
   scoped_ptr<StrictMock<MockDecryptor> > decryptor_;
-  scoped_refptr<StrictMock<MockDemuxerStream> > demuxer_;
+  scoped_ptr<StrictMock<MockDemuxerStream> > demuxer_;
   MockStatisticsCB statistics_cb_;
   VideoDecoderConfig config_;
 
@@ -573,7 +573,7 @@ TEST_F(DecryptingVideoDecoderTest, Stop_DuringDecryptorRequested) {
   DecryptorReadyCB decryptor_ready_cb;
   EXPECT_CALL(*this, RequestDecryptorNotification(_))
       .WillOnce(SaveArg<0>(&decryptor_ready_cb));
-  decoder_->Initialize(demuxer_,
+  decoder_->Initialize(demuxer_.get(),
                        NewExpectedStatusCB(DECODER_ERROR_NOT_SUPPORTED),
                        base::Bind(&MockStatisticsCB::OnStatistics,
                                   base::Unretained(&statistics_cb_)));