Add and use a base::i18n::StringWithDirection for carrying titles.

chrome/browser/prerender/prerender_contents.cc

 // Copyright (c) 2011 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/browser/prerender/prerender_contents.h"
 
+#include "base/i18n/rtl.h"
 #include "base/process_util.h"
 #include "base/task.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/background_contents_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_render_widget_host_view.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
@@ skipping 242 matching lines @@
   navigate_params_.reset(p);
 
   if (!AddAliasURL(params.url)) {
     Destroy(FINAL_STATUS_HTTPS);
     return;
   }
 
   url_ = params.url;
 }
 
-void PrerenderContents::UpdateTitle(RenderViewHost* render_view_host,
-                                    int32 page_id,
-                                    const string16& title,
-                                    WebKit::WebTextDirection title_direction) {
-  if (title.empty())
+void PrerenderContents::UpdateTitle(
+    RenderViewHost* render_view_host,
+    int32 page_id,
+    const base::i18n::String16WithDirection& title) {
+  if (title.string().empty())
     return;
 
   // TODO(evan): use directionality of title.
   // http://code.google.com/p/chromium/issues/detail?id=27094
-  title_ = title;
+  title_ = title.string();
   page_id_ = page_id;
 }
 
 void PrerenderContents::RunJavaScriptMessage(
     const std::wstring& message,
     const std::wstring& default_prompt,
     const GURL& frame_url,
     const int flags,
     IPC::Message* reply_msg,
     bool* did_suppress_message) {
@@ skipping 267 matching lines @@
     return;
 
   size_t private_bytes, shared_bytes;
   if (metrics->GetMemoryBytes(&private_bytes, &shared_bytes)) {
     if (private_bytes > kMaxPrerenderPrivateMB * 1024 * 1024)
       Destroy(FINAL_STATUS_MEMORY_LIMIT_EXCEEDED);
   }
 }
 
 }  // namespace prerender