Reduce the amount of included header files. Vast change like in "Oh God! This...

chrome/browser/renderer_host/buffered_resource_handler.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
 
 #include <string>
 
 #include "chrome/browser/renderer_host/resource_handler.h"
 
 class ResourceDispatcherHost;
+class URLRequest;
 
 // Used to buffer a request until enough data has been received.
 class BufferedResourceHandler : public ResourceHandler {
  public:
   BufferedResourceHandler(ResourceHandler* handler,
                           ResourceDispatcherHost* host,
                           URLRequest* request);
 
   // ResourceHandler implementation:
   bool OnUploadProgress(int request_id, uint64 position, uint64 size);
@@ skipping 32 matching lines @@
   int bytes_read_;
   bool sniff_content_;
   bool should_buffer_;
   bool buffering_;
   bool finished_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedResourceHandler);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_