Make GetURLForDebugging return a const GURL

webkit/glue/media/buffered_data_source.h

 // Copyright (c) 2009 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_GLUE_MEDIA_BUFFERED_DATA_SOURCE_H_
 #define WEBKIT_GLUE_MEDIA_BUFFERED_DATA_SOURCE_H_
 
 #include <algorithm>
 #include <string>
 #include <vector>
@@ skipping 99 matching lines @@
   virtual void OnUploadProgress(uint64 position, uint64 size) {}
   virtual bool OnReceivedRedirect(
       const GURL& new_url,
       const webkit_glue::ResourceLoaderBridge::ResponseInfo& info);
   virtual void OnReceivedResponse(
       const webkit_glue::ResourceLoaderBridge::ResponseInfo& info,
       bool content_filtered);
   virtual void OnReceivedData(const char* data, int len);
   virtual void OnCompletedRequest(const URLRequestStatus& status,
       const std::string& security_info);
-  std::string GetURLForDebugging() { return url_.spec(); }
+  GURL GetURLForDebugging() const { return url_; }
 
  protected:
   // An empty constructor so mock classes can be constructed.
   BufferedResourceLoader() {
   }
 
  private:
   // Defer the resource loading if the buffer is full.
   void EnableDeferIfNeeded();
 
@@ skipping 252 matching lines @@
   // loop. The RepeatingTimer does PostDelayedTask() internally, by using it
   // the message loop doesn't hold a reference for the watch dog task.
   base::RepeatingTimer<BufferedDataSource> watch_dog_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedDataSource);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_MEDIA_BUFFERED_DATA_SOURCE_H_