Fix buffered range updates in media::Pipeline

media/base/pipeline.cc

Index: media/base/pipeline.cc
diff --git a/media/base/pipeline.cc b/media/base/pipeline.cc
index 942726134456f6ccc4b81bce1d714fc1b6724a61..1a642e168e202767344eeadfb135f31c33dbfb80 100644
--- a/media/base/pipeline.cc
+++ b/media/base/pipeline.cc
@@ -505,10 +505,11 @@ void Pipeline::OnStopCompleted(PipelineStatus status) {
   }
 }
 
-void Pipeline::AddBufferedTimeRange(TimeDelta start, TimeDelta end) {
+void Pipeline::OnBufferedTimeRangesChanged(
+    const Ranges<base::TimeDelta>& ranges) {
   DCHECK(IsRunning());
   base::AutoLock auto_lock(lock_);
-  buffered_time_ranges_.Add(start, end);
+  buffered_time_ranges_ = ranges;
   did_loading_progress_ = true;
 }