Fire CanPlayThrough immediately for local and streaming media files

webkit/media/buffered_data_source.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_
 #define WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 35 matching lines @@
   // Called from demuxer thread.
   virtual void Read(
       int64 position,
       size_t size,
       uint8* data,
       const media::DataSource::ReadCallback& read_callback) OVERRIDE;
   virtual bool GetSize(int64* size_out) OVERRIDE;
   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,
                           const media::PipelineStatusCB& callback) OVERRIDE;
   virtual void CancelInitialize() OVERRIDE;
   virtual bool HasSingleOrigin() OVERRIDE;
   virtual void Abort() OVERRIDE;
 
  protected:
   // A factory method to create a BufferedResourceLoader based on the read
@@ skipping 74 matching lines @@
   // URL of the resource requested.
   GURL url_;
 
   // Members for total bytes of the requested object. It is written once on
   // render thread but may be read from any thread. However reading of this
   // member is guaranteed to happen after it is first written, so we don't
   // need to protect it.
   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.
   bool streaming_;
 
   // A webframe for loading.
   WebKit::WebFrame* frame_;
 
   // A resource loader for the media resource.
   scoped_refptr<BufferedResourceLoader> loader_;
@@ skipping 64 matching lines @@
   float playback_rate_;
 
   scoped_refptr<media::MediaLog> media_log_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedDataSource);
 };
 
 }  // namespace webkit_media
 
 #endif  // WEBKIT_MEDIA_BUFFERED_DATA_SOURCE_H_