Use base namespace for string16 in components and cloud_print.

components/plugins/renderer/plugin_placeholder.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_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_
 #define COMPONENTS_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_
 
 #include "components/plugins/renderer/webview_plugin.h"
 #include "content/public/common/webplugininfo.h"
 #include "content/public/renderer/context_menu_client.h"
@@ skipping 31 matching lines @@
                     blink::WebFrame* frame,
                     const blink::WebPluginParams& params,
                     const std::string& html_data,
                     GURL placeholderDataUrl);
 
   virtual ~PluginPlaceholder();
 
   void OnLoadBlockedPlugins(const std::string& identifier);
   void OnSetIsPrerendering(bool is_prerendering);
 
-  void SetMessage(const string16& message);
+  void SetMessage(const base::string16& message);
   void SetPluginInfo(const content::WebPluginInfo& plugin_info);
   const content::WebPluginInfo& GetPluginInfo() const;
   void SetIdentifier(const std::string& identifier);
   content::RenderFrame* GetRenderFrame();
   blink::WebFrame* GetFrame();
   const blink::WebPluginParams& GetPluginParams() const;
   bool LoadingAllowed() const { return allow_loading_; }
 
   // Replace this placeholder with a different plugin (which could be
   // a placeholder again).
@@ skipping 30 matching lines @@
 
   void UpdateMessage();
 
   content::RenderFrame* render_frame_;
   blink::WebFrame* frame_;
   blink::WebPluginParams plugin_params_;
   WebViewPlugin* plugin_;
 
   content::WebPluginInfo plugin_info_;
 
-  string16 message_;
+  base::string16 message_;
 
   // True iff the plugin was blocked because the page was being prerendered.
   // Plugin will automatically be loaded when the page is displayed.
   bool is_blocked_for_prerendering_;
   bool allow_loading_;
 
   bool hidden_;
   bool finished_loading_;
   std::string identifier_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginPlaceholder);
 };
 
 }  // namespace plugins
 
 #endif  // COMPONENTS_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_