Use base namespace for string16 in components and cloud_print.

components/dom_distiller/content/distiller_page_web_contents.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_
 #define COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "components/dom_distiller/core/distiller_page.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 34 matching lines @@
   // content::WebContentsObserver implementation.
   virtual void DidFinishLoad(int64 frame_id,
                              const GURL& validated_url,
                              bool is_main_frame,
                              RenderViewHost* render_view_host) OVERRIDE;
 
   virtual void DidFailLoad(int64 frame_id,
                            const GURL& validated_url,
                            bool is_main_frame,
                            int error_code,
-                           const string16& error_description,
+                           const base::string16& error_description,
                            RenderViewHost* render_view_host) OVERRIDE;
 
  protected:
   virtual void InitImpl() OVERRIDE;
   virtual void LoadURLImpl(const GURL& gurl) OVERRIDE;
   virtual void ExecuteJavaScriptImpl(const std::string& script) OVERRIDE;
 
  private:
   scoped_ptr<content::WebContents> web_contents_;
   content::BrowserContext* browser_context_;
   DISALLOW_COPY_AND_ASSIGN(DistillerPageWebContents);
 };
 
 }  // namespace dom_distiller
 
 #endif  // COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLER_PAGE_WEB_CONTENTS_H_