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

net/url_request/url_request.cc

 // 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.
 
 #include "net/url_request/url_request.h"
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/singleton.h"
@@ skipping 234 matching lines @@
     status_.set_os_error(os_error);
   }
 
   job_->Kill();
 
   // The Job will call our NotifyDone method asynchronously.  This is done so
   // that the Delegate implementation can call Cancel without having to worry
   // about being called recursively.
 }
 
-bool URLRequest::Read(char* dest, int dest_size, int *bytes_read) {
+bool URLRequest::Read(net::IOBuffer* dest, int dest_size, int *bytes_read) {
   DCHECK(job_);
   DCHECK(bytes_read);
   DCHECK(!job_->is_done());
   *bytes_read = 0;
 
   if (dest_size == 0) {
     // Caller is not too bright.  I guess we've done what they asked.
     return true;
   }
 
@@ skipping 111 matching lines @@
   return net::OK;
 }
 
 int64 URLRequest::GetExpectedContentSize() const {
   int64 expected_content_size = -1;
   if (job_)
     expected_content_size = job_->expected_content_size();
 
   return expected_content_size;
 }