Fire CanPlayThrough immediately for local and streaming media files

media/base/pipeline_impl.h

Index: media/base/pipeline_impl.h
diff --git a/media/base/pipeline_impl.h b/media/base/pipeline_impl.h
index 57f8aebda2d75c85118f2cadd3b97ffe70bc3475..0a3d25bb2ca707ea6ad80f863d360e82c43ae546 100644
--- a/media/base/pipeline_impl.h
+++ b/media/base/pipeline_impl.h
@@ -125,6 +125,7 @@ class MEDIA_EXPORT PipelineImpl : public Pipeline, public FilterHost {
   virtual int64 GetBufferedBytes() const OVERRIDE;
   virtual int64 GetTotalBytes() const OVERRIDE;
   virtual void GetNaturalVideoSize(gfx::Size* out_size) const OVERRIDE;
+  virtual void SetMediaStream(bool is_media_stream) OVERRIDE;
   virtual bool IsStreaming() const OVERRIDE;
   virtual bool IsLoaded() const OVERRIDE;
   virtual PipelineStatistics GetStatistics() const OVERRIDE;
@@ -385,10 +386,14 @@ class MEDIA_EXPORT PipelineImpl : public Pipeline, public FilterHost {
   // Video's natural width and height.  Set by filters.
   gfx::Size natural_size_;
 
-  // Sets by the filters to indicate whether the data source is a streaming
+  // Set by the filters to indicate whether the data source is a streaming
   // source.
   bool streaming_;
 
+  // Set by pipeline client to indicate whether the data source is a
+  // MediaStream.
+  bool media_stream_;
+
   // Sets by the filters to indicate whether the data source is a fully
   // loaded source.
   bool loaded_;