Logged information from BufferedDataSource including

content/renderer/media/buffered_data_source.h

 // Copyright 2013 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 CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 36 matching lines @@
   // Initialize this object using |url| and |cors_mode|, executing |init_cb|
   // with the result of initialization when it has completed.
   //
   // Method called on the render thread.
   typedef base::Callback<void(bool)> InitializeCB;
   void Initialize(
       const GURL& url,
       BufferedResourceLoader::CORSMode cors_mode,
       const InitializeCB& init_cb);
 
+  // Wrap an existing InitializeCB and return a new InitializeCB that calls
+  // the original but also logs information about the BufferedDataSource
+  // post initialization.
+  InitializeCB CreateInitializeCB(
+      const scoped_refptr<media::MediaLog>& media_log,
+      const InitializeCB& init_cb);
+
   // Adjusts the buffering algorithm based on the given preload value.
   void SetPreload(Preload preload);
 
   // Returns true if the media resource has a single origin, false otherwise.
   // Only valid to call after Initialize() has completed.
   //
   // Method called on the render thread.
   bool HasSingleOrigin();
 
   // Returns true if the media resource passed a CORS access control check.
@@ skipping 145 matching lines @@
   scoped_refptr<media::MediaLog> media_log_;
 
   DownloadingCB downloading_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedDataSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_