Fire CanPlayThrough immediately for local and streaming media files

media/filters/dummy_demuxer.cc

Index: media/filters/dummy_demuxer.cc
diff --git a/media/filters/dummy_demuxer.cc b/media/filters/dummy_demuxer.cc
index 095ffee762bd5362822987c3805dd272c1c3079c..28decb51ccca2eaef586db3a51558d603549417c 100644
--- a/media/filters/dummy_demuxer.cc
+++ b/media/filters/dummy_demuxer.cc
@@ -32,9 +32,10 @@ void DummyDemuxerStream::Read(const ReadCallback& read_callback) {}
 
 void DummyDemuxerStream::EnableBitstreamConverter() {}
 
-DummyDemuxer::DummyDemuxer(bool has_video, bool has_audio)
+DummyDemuxer::DummyDemuxer(bool has_video, bool has_audio, bool local_source)
     : has_video_(has_video),
-      has_audio_(has_audio) {
+      has_audio_(has_audio),
+      local_source_(local_source) {
   streams_.resize(DemuxerStream::NUM_TYPES);
   if (has_audio)
     streams_[DemuxerStream::AUDIO] =
@@ -60,4 +61,12 @@ base::TimeDelta DummyDemuxer::GetStartTime() const {
   return base::TimeDelta();
 }
 
+bool DummyDemuxer::IsLocalSource() {
+  return local_source_;
+}
+
+bool DummyDemuxer::IsSeekable() {
+  return false;

[acolwell GONE FROM CHROMIUM, 2011/12/01 04:25:00]

nit: Might want to add a brief comment here mentioning that this is always false
because the only user of this demuxer is WebRTC and such streams are not
seekable.

+}
+
 }  // namespace media