Replace string16 with base::string16.

chrome/browser/chromeos/ui/screen_capture_notification_ui_chromeos.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_BROWSER_CHROMEOS_UI_SCREEN_CAPTURE_NOTIFICATION_UI_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_UI_SCREEN_CAPTURE_NOTIFICATION_UI_CHROMEOS_H_
 
 #include "base/observer_list.h"
 #include "chrome/browser/ui/screen_capture_notification_ui.h"
 
 namespace chromeos {
 
 // Chromeos implementation for ScreenCaptureNotificationUI.
 class ScreenCaptureNotificationUIChromeOS : public ScreenCaptureNotificationUI {
  public:
   // |text| is used to specify the text for the notification.
-  explicit ScreenCaptureNotificationUIChromeOS(const string16& text);
+  explicit ScreenCaptureNotificationUIChromeOS(const base::string16& text);
   virtual ~ScreenCaptureNotificationUIChromeOS();
 
   // ScreenCaptureNotificationUI overrides.
   virtual void OnStarted(const base::Closure& stop_callback) OVERRIDE;
 
  private:
-  const string16 text_;
+  const base::string16 text_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenCaptureNotificationUIChromeOS);
 };
 
 }  // namespace chromeos
 #endif  // CHROME_BROWSER_CHROMEOS_UI_SCREEN_CAPTURE_NOTIFICATION_UI_CHROMEOS_H_