Convert string16 to base::string16 in content.

content/browser/browser_plugin/test_browser_plugin_guest_delegate.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 CONTENT_BROWSER_BROWSER_PLUGIN_TEST_BROWSER_PLUGIN_GUEST_DELEGATE_H_
 #define CONTENT_BROWSER_BROWSER_PLUGIN_TEST_BROWSER_PLUGIN_GUEST_DELEGATE_H_
 
 #include "content/public/browser/browser_plugin_guest_delegate.h"
 
 namespace content {
 
 class TestBrowserPluginGuestDelegate : public BrowserPluginGuestDelegate {
  public:
   TestBrowserPluginGuestDelegate();
   virtual ~TestBrowserPluginGuestDelegate();
 
   void ResetStates();
 
   bool load_aborted() const { return load_aborted_; }
   const GURL& load_aborted_url() const { return load_aborted_url_; }
 
  private:
   // Overridden from BrowserPluginGuestDelegate:
   virtual void AddMessageToConsole(int32 level,
-                                   const string16& message,
+                                   const base::string16& message,
                                    int32 line_no,
-                                   const string16& source_id) OVERRIDE;
+                                   const base::string16& source_id) OVERRIDE;
   virtual void Close() OVERRIDE;
   virtual void GuestProcessGone(base::TerminationStatus status) OVERRIDE;
   virtual bool HandleKeyboardEvent(
       const NativeWebKeyboardEvent& event) OVERRIDE;
   virtual void LoadAbort(bool is_top_level,
                          const GURL& url,
                          const std::string& error_type) OVERRIDE;
   virtual void RendererResponsive() OVERRIDE;
   virtual void RendererUnresponsive() OVERRIDE;
   virtual bool RequestPermission(
       BrowserPluginPermissionType permission_type,
       const base::DictionaryValue& request_info,
       const PermissionResponseCallback& callback,
       bool allowed_by_default) OVERRIDE;
   virtual void SizeChanged(const gfx::Size& old_size,
                            const gfx::Size& new_size) OVERRIDE;
 
   bool load_aborted_;
   GURL load_aborted_url_;
 
   DISALLOW_COPY_AND_ASSIGN(TestBrowserPluginGuestDelegate);
 };
 
 }  // namespace content
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_TEST_BROWSER_PLUGIN_GUEST_DELEGATE_H_