Fire CanPlayThrough immediately for local and streaming media files

webkit/media/simple_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.
 
 // An extremely simple implementation of DataSource that downloads the entire
 // media resource into memory before signaling that initialization has finished.
 // Primarily used to test <audio> and <video> with buffering/caching removed
 // from the equation.
 
 #ifndef WEBKIT_MEDIA_SIMPLE_DATA_SOURCE_H_
@@ skipping 41 matching lines @@
 
   // media::DataSource implementation.
   virtual void Read(int64 position,
                     size_t size,
                     uint8* data,
                     const 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;
 
   // Used to inject a mock used for unittests.
   virtual void SetURLLoaderForTest(WebKit::WebURLLoader* mock_loader);
 
   // WebKit::WebURLLoaderClient implementations.
   virtual void willSendRequest(
       WebKit::WebURLLoader* loader,
       WebKit::WebURLRequest& newRequest,
       const WebKit::WebURLResponse& redirectResponse);
   virtual void didSendData(
@@ skipping 47 matching lines @@
   // A webframe for loading.
   WebKit::WebFrame* frame_;
 
   // Does the work of loading and sends data back to this client.
   scoped_ptr<WebKit::WebURLLoader> url_loader_;
 
   GURL url_;
   std::string data_;
   int64 size_;
   bool single_origin_;
+  bool local_source_;
 
   // Simple state tracking variable.
   enum State {
     UNINITIALIZED,
     INITIALIZING,
     INITIALIZED,
     STOPPED,
   };
   State state_;
 
   // Used for accessing |state_|.
   base::Lock lock_;
 
   // Filter callbacks.
   media::PipelineStatusCB initialize_cb_;
 
   // Used to ensure mocks for unittests are used instead of reset in Start().
   bool keep_test_loader_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleDataSource);
 };
 
 }  // namespace webkit_media
 
 #endif  // WEBKIT_MEDIA_SIMPLE_DATA_SOURCE_H_