Add Chromium-side support for SourceBuffer.appendWindowStart and SourceBuffer.appendWindowEnd.

media/mp4/track_run_iterator_unittest.cc

Index: media/mp4/track_run_iterator_unittest.cc
diff --git a/media/mp4/track_run_iterator_unittest.cc b/media/mp4/track_run_iterator_unittest.cc
index c0cbbe645b9ca91c84893d6ad7b0b5db17e9a492..499a2e1a69750e02003fa0c67f67cc11ecb656df 100644
--- a/media/mp4/track_run_iterator_unittest.cc
+++ b/media/mp4/track_run_iterator_unittest.cc
@@ -251,16 +251,6 @@ TEST_F(TrackRunIteratorTest, FirstSampleFlagTest) {
   EXPECT_FALSE(iter_->is_keyframe());
 }
 
-TEST_F(TrackRunIteratorTest, MinDecodeTest) {
-  iter_.reset(new TrackRunIterator(&moov_, log_cb_));
-  MovieFragment moof = CreateFragment();
-  moof.tracks[0].decode_time.decode_time = kAudioScale;
-  ASSERT_TRUE(iter_->Init(moof));
-  EXPECT_EQ(TimeDeltaFromRational(moof.tracks[1].decode_time.decode_time,
-                                  kVideoScale),
-            iter_->GetMinDecodeTimestamp());
-}
-
 TEST_F(TrackRunIteratorTest, ReorderingTest) {
   // Test frame reordering and edit list support. The frames have the following
   // decode timestamps: