Prefix string16 with base:: in ui/.

ui/views/controls/button/button.cc

 // Copyright (c) 2011 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/button.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 
 namespace views {
 
 ////////////////////////////////////////////////////////////////////////////////
 // Button, public:
 
 Button::~Button() {
 }
 
-void Button::SetTooltipText(const string16& tooltip_text) {
+void Button::SetTooltipText(const base::string16& tooltip_text) {
   tooltip_text_ = tooltip_text;
   if (accessible_name_.empty())
     accessible_name_ = tooltip_text_;
   TooltipTextChanged();
 }
 
-void Button::SetAccessibleName(const string16& name) {
+void Button::SetAccessibleName(const base::string16& name) {
   accessible_name_ = name;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Button, View overrides:
 
-bool Button::GetTooltipText(const gfx::Point& p, string16* tooltip) const {
+bool Button::GetTooltipText(const gfx::Point& p,
+                            base::string16* tooltip) const {
   if (tooltip_text_.empty())
     return false;
 
   *tooltip = tooltip_text_;
   return true;
 }
 
 void Button::GetAccessibleState(ui::AccessibleViewState* state) {
   state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
   state->name = accessible_name_;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Button, protected:
 
 Button::Button(ButtonListener* listener)
     : listener_(listener),
       tag_(-1) {
   SetAccessibilityFocusable(true);
 }
 
 void Button::NotifyClick(const ui::Event& event) {
   // We can be called when there is no listener, in cases like double clicks on
   // menu buttons etc.
   if (listener_)
     listener_->ButtonPressed(this, event);
 }
 
 }  // namespace views