Track buffered byte ranges correctly in media::Pipeline.

media/filters/chunk_demuxer_unittest.cc

Index: media/filters/chunk_demuxer_unittest.cc
diff --git a/media/filters/chunk_demuxer_unittest.cc b/media/filters/chunk_demuxer_unittest.cc
index 61ee9c2bd8f1820378f52d8f57113fc7b29c1793..84d2e5ae764a93c2d3fc77861f9d485d5678841c 100644
--- a/media/filters/chunk_demuxer_unittest.cc
+++ b/media/filters/chunk_demuxer_unittest.cc
@@ -183,9 +183,8 @@ class ChunkDemuxerTest : public testing::Test {
 
   bool AppendData(const uint8* data, size_t length) {
     CHECK(length);
-    EXPECT_CALL(host_, SetBufferedBytes(_))
-        .Times(AnyNumber())
-        .WillRepeatedly(SaveArg<0>(&buffered_bytes_));
+    EXPECT_CALL(host_, AddBufferedByteRange(_, _)).Times(AnyNumber())
+        .WillRepeatedly(SaveArg<1>(&buffered_bytes_));
     EXPECT_CALL(host_, SetNetworkActivity(true))
         .Times(AnyNumber());
     return demuxer_->AppendData(kSourceId, data, length);