Fire CanPlayThrough immediately for local and streaming media files

webkit/media/buffered_data_source.h

Index: webkit/media/buffered_data_source.h
diff --git a/webkit/media/buffered_data_source.h b/webkit/media/buffered_data_source.h
index 7987d09a42ef172c1eb007d56581d26fd1cdd269..4bc849931bad84df83e5d441e36f94d3d5650711 100644
--- a/webkit/media/buffered_data_source.h
+++ b/webkit/media/buffered_data_source.h
@@ -53,6 +53,7 @@ class BufferedDataSource : public WebDataSource {
   virtual bool IsStreaming() OVERRIDE;
   virtual void SetPreload(media::Preload preload) OVERRIDE;
   virtual void SetBitrate(int bitrate) OVERRIDE;
+  virtual bool IsLocalSource() OVERRIDE;
 
   // webkit_glue::WebDataSource implementation.
   virtual void Initialize(const std::string& url,
@@ -147,8 +148,8 @@ class BufferedDataSource : public WebDataSource {
   int64 total_bytes_;
   int64 buffered_bytes_;
 
-  // True if this data source is considered loaded.
-  bool loaded_;
+  // True if this data source is from a local file.
+  bool local_source_;
 
   // This value will be true if this data source can only support streaming.
   // i.e. range request is not supported.