Attempt four at landing the "histogram.h removed from message_loop.h" patch.

webkit/glue/weburlloader_impl.cc

 // Copyright (c) 2006-2009 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.
 
 // An implementation of WebURLLoader in terms of ResourceLoaderBridge.
 
 #include "webkit/glue/weburlloader_impl.h"
 
 #include "base/file_path.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
+#include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "net/base/data_url.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/http/http_response_headers.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebHTTPHeaderVisitor.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebSecurityPolicy.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
@@ skipping 654 matching lines @@
 
 void WebURLLoaderImpl::cancel() {
   context_->Cancel();
 }
 
 void WebURLLoaderImpl::setDefersLoading(bool value) {
   context_->SetDefersLoading(value);
 }
 
 }  // namespace webkit_glue