Use a direct include of strings headers in chrome/renderer/.

chrome/renderer/security_filter_peer.cc

 // Copyright (c) 2012 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 "chrome/renderer/security_filter_peer.h"
 
 #include "base/memory/scoped_ptr.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "grit/generated_resources.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_headers.h"
 #include "ui/base/l10n/l10n_util.h"
 
 SecurityFilterPeer::SecurityFilterPeer(
     webkit_glue::ResourceLoaderBridge* resource_loader_bridge,
     webkit_glue::ResourceLoaderBridge::Peer* peer)
     : original_peer_(peer),
       resource_loader_bridge_(resource_loader_bridge) {
@@ skipping 199 matching lines @@
                                    static_cast<int>(data_.size()),
                                    -1);
   original_peer_->OnCompletedRequest(net::OK,
                                      false,
                                      security_info,
                                      completion_time);
 
   // The request processing is complete, we must delete ourselves.
   delete this;
 }