Prefix string16 with base:: in ui/.

ui/views/controls/button/radio_button.cc

 // Copyright (c) 2012 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.
 
 #include "ui/views/controls/button/radio_button.h"
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/widget/widget.h"
 
 namespace views {
 
 // static
 const char RadioButton::kViewClassName[] = "RadioButton";
 
-RadioButton::RadioButton(const string16& label, int group_id)
+RadioButton::RadioButton(const base::string16& label, int group_id)
     : Checkbox(label) {
   SetGroup(group_id);
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 
   // Unchecked/Unfocused images.
   SetCustomImage(false, false, STATE_NORMAL,
                  *rb.GetImageSkiaNamed(IDR_RADIO));
   SetCustomImage(false, false, STATE_HOVERED,
                  *rb.GetImageSkiaNamed(IDR_RADIO_HOVER));
@@ skipping 105 matching lines @@
     SetChecked(true);
   RequestFocus();
   LabelButton::NotifyClick(event);
 }
 
 ui::NativeTheme::Part RadioButton::GetThemePart() const {
   return ui::NativeTheme::kRadio;
 }
 
 }  // namespace views