Ensure media's buffered ranges always have a range that includes currentTime.

media/filters/chunk_demuxer.cc

Index: media/filters/chunk_demuxer.cc
diff --git a/media/filters/chunk_demuxer.cc b/media/filters/chunk_demuxer.cc
index 8b77834cfdf07baa6b99a96f367ac1be5e973f90..90c64c55b804ce35a7d73f931e690477ff1d15dc 100644
--- a/media/filters/chunk_demuxer.cc
+++ b/media/filters/chunk_demuxer.cc
@@ -81,13 +81,6 @@ static const SupportedTypeInfo kSupportedTypeInfo[] = {
 #endif
 };
 
-
-// The fake total size we use for converting times to bytes
-// for AddBufferedByteRange() calls.
-// TODO(acolwell): Remove this once Pipeline accepts buffered times
-// instead of only buffered bytes.
-enum { kFakeTotalBytes = 1000000 };
-
 // Checks to see if the specified |type| and |codecs| list are supported.
 // Returns true if |type| and all codecs listed in |codecs| are supported.
 //         |factory_function| contains a function that can build a StreamParser
@@ -753,15 +746,8 @@ bool ChunkDemuxer::AppendData(const std::string& id,
     }
   }
 
-  DCHECK(!ranges.size() || duration_ > TimeDelta());
-  for (size_t i = 0; i < ranges.size(); ++i) {
-    // Notify the host of 'network activity' because we got data.
-    int64 start =
-        kFakeTotalBytes * ranges.start(i).InSecondsF() / duration_.InSecondsF();
-    int64 end =
-        kFakeTotalBytes * ranges.end(i).InSecondsF() / duration_.InSecondsF();
-    host_->AddBufferedByteRange(start, end);
-  }
+  for (size_t i = 0; i < ranges.size(); ++i)
+    host_->AddBufferedTimeRange(ranges.start(i), ranges.end(i));
 
   if (!cb.is_null())
     cb.Run(PIPELINE_OK);
@@ -929,8 +915,6 @@ void ChunkDemuxer::OnStreamParserInitDone(bool success, TimeDelta duration) {
       (!source_id_video_.empty() && !video_))
     return;
 
-  if (duration_ > TimeDelta() && duration_ != kInfiniteDuration())
-    host_->SetTotalBytes(kFakeTotalBytes);
   host_->SetDuration(duration_);
 
   ChangeState_Locked(INITIALIZED);