Convert GetDisplayStringInLTRDirectionality from wstring to string16.

chrome/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2010 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/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1314 matching lines @@
   //
   // Currently, we use element's directionality as the tooltip direction hint.
   // An alternate solution would be to set the overall directionality based on
   // trying to detect the directionality from the tooltip text rather than the
   // element direction.  One could argue that would be a preferable solution
   // but we use the current approach to match Fx & IE's behavior.
   std::wstring wrapped_tooltip_text = tooltip_text;
   if (!tooltip_text.empty()) {
     if (text_direction_hint == WebKit::WebTextDirectionLeftToRight) {
       // Force the tooltip to have LTR directionality.
-      base::i18n::GetDisplayStringInLTRDirectionality(&wrapped_tooltip_text);
+      wrapped_tooltip_text = UTF16ToWide(
+          base::i18n::GetDisplayStringInLTRDirectionality(
+              WideToUTF16(wrapped_tooltip_text)));
     } else if (text_direction_hint == WebKit::WebTextDirectionRightToLeft &&
                !base::i18n::IsRTL()) {
       // Force the tooltip to have RTL directionality.
       base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
     }
   }
   if (view())
     view()->SetTooltipText(wrapped_tooltip_text);
 }
 
@@ skipping 674 matching lines @@
   RenderViewHostDelegate::ContentSettings* content_settings_delegate =
       delegate_->GetContentSettingsDelegate();
   if (content_settings_delegate)
     content_settings_delegate->OnWebDatabaseAccessed(
         url, name, display_name, estimated_size, blocked_by_policy);
 }
 
 void RenderViewHost::OnSetDisplayingPDFContent() {
   delegate_->SetDisplayingPDFContent();
 }