Change URLRequest to use a ref-counted buffer for actual IO....

chrome/browser/renderer_host/sync_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_SYNC_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_
 
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/renderer_host/resource_handler.h"
+#include "net/base/io_buffer.h"
 
 // Used to complete a synchronous resource request in response to resource load
 // events from the resource dispatcher host.
 class SyncResourceHandler : public ResourceHandler {
  public:
   SyncResourceHandler(ResourceDispatcherHost::Receiver* receiver,
                       const GURL& url,
                       IPC::Message* result_message);
 
   bool OnRequestRedirected(int request_id, const GURL& new_url);
   bool OnResponseStarted(int request_id, ResourceResponse* response);
-  bool OnWillRead(int request_id, char** buf, int* buf_size, int min_size);
+  bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size,
+                  int min_size);
   bool OnReadCompleted(int request_id, int* bytes_read);
   bool OnResponseCompleted(int request_id, const URLRequestStatus& status);
 
  private:
   enum { kReadBufSize = 3840 };
-  char read_buffer_[kReadBufSize];
+  scoped_refptr<net::IOBuffer> read_buffer_;
 
   ViewHostMsg_SyncLoad_Result result_;
   ResourceDispatcherHost::Receiver* receiver_;
   IPC::Message* result_message_;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_