Use base namespace for string16 in chrome/renderer.

chrome/renderer/plugins/chrome_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 CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 #define CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 
 #include "components/plugins/renderer/plugin_placeholder.h"
 
 struct ChromeViewHostMsg_GetPluginInfo_Status;
 
 class ChromePluginPlaceholder : public plugins::PluginPlaceholder,
                                 public content::RenderProcessObserver,
                                 public content::ContextMenuClient {
  public:
   static const char kPluginPlaceholderDataURL[];
 
   static ChromePluginPlaceholder* CreateBlockedPlugin(
       content::RenderView* render_view,
       blink::WebFrame* frame,
       const blink::WebPluginParams& params,
       const content::WebPluginInfo& info,
       const std::string& identifier,
-      const string16& name,
+      const base::string16& name,
       int resource_id,
-      const string16& message);
+      const base::string16& message);
 
   // Creates a new WebViewPlugin with a MissingPlugin as a delegate.
   static ChromePluginPlaceholder* CreateMissingPlugin(
       content::RenderView* render_view,
       blink::WebFrame* frame,
       const blink::WebPluginParams& params);
 
   static ChromePluginPlaceholder* CreateErrorPlugin(
       content::RenderView* render_view,
       const base::FilePath& plugin_path);
 
   void SetStatus(const ChromeViewHostMsg_GetPluginInfo_Status& status);
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   int32 CreateRoutingId();
 #endif
 
  private:
   ChromePluginPlaceholder(content::RenderView* render_view,
                           blink::WebFrame* frame,
                           const blink::WebPluginParams& params,
                           const std::string& html_data,
-                          const string16& title);
+                          const base::string16& title);
   virtual ~ChromePluginPlaceholder();
 
   // WebViewPlugin::Delegate (via PluginPlaceholder) method
   virtual void BindWebFrame(blink::WebFrame* frame) OVERRIDE;
 
   // content::RenderViewObserver (via PluginPlaceholder) override:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // WebViewPlugin::Delegate (via PluginPlaceholder) methods:
   virtual void ShowContextMenu(const blink::WebMouseEvent&) OVERRIDE;
 
   // content::RenderProcessObserver methods:
   virtual void PluginListChanged() OVERRIDE;
 
   // content::ContextMenuClient methods:
   virtual void OnMenuAction(int request_id, unsigned action) OVERRIDE;
   virtual void OnMenuClosed(int request_id) OVERRIDE;
 
   // Javascript callback opens chrome://plugins in a new tab.
   // Arguments are required by the caller, but not used.
   void OpenAboutPluginsCallback(const webkit_glue::CppArgumentList& args,
                                 webkit_glue::CppVariant* result);
 
   void OnLoadBlockedPlugins(const std::string& identifier);
   void OnSetIsPrerendering(bool is_prerendering);
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   void OnDidNotFindMissingPlugin();
-  void OnFoundMissingPlugin(const string16& plugin_name);
+  void OnFoundMissingPlugin(const base::string16& plugin_name);
   void OnStartedDownloadingPlugin();
   void OnFinishedDownloadingPlugin();
   void OnErrorDownloadingPlugin(const std::string& error);
   void OnCancelledDownloadingPlugin();
 #endif
 
   // We use a scoped_ptr so we can forward-declare the struct; it's defined in
   // an IPC message file which can't be easily included in other header files.
   scoped_ptr<ChromeViewHostMsg_GetPluginInfo_Status> status_;
 
-  string16 title_;
+  base::string16 title_;
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   // |routing_id()| is the routing ID of our associated RenderView, but we have
   // a separate routing ID for messages specific to this placeholder.
   int32 placeholder_routing_id_;
 #endif
 
   bool has_host_;
   int context_menu_request_id_;  // Nonzero when request pending.
-  string16 plugin_name_;
+  base::string16 plugin_name_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePluginPlaceholder);
 };
 
 #endif  // CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_