Enable tooltips for aura.

views/widget/tooltip_manager_views.h

 // 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.
 
 #ifndef VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_
 #define VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_
 #pragma once
 
 #include "base/message_loop.h"
 #include "base/timer.h"
 #include "views/controls/label.h"
 #include "views/widget/native_widget.h"
 #include "views/widget/tooltip_manager.h"
 #include "views/widget/widget_delegate.h"
 #include "views/view.h"
 
 #if defined(USE_X11)
 typedef union _XEvent XEvent;
 namespace ui {
 union WaylandEvent;
 }
 #endif
 
 namespace views {
 
-namespace internal {
-class RootView;
-}
-
 class Widget;
 
 // TooltipManager implementation for Views.
 class TooltipManagerViews : public TooltipManager,
                             public MessageLoopForUI::Observer {
  public:
-  explicit TooltipManagerViews(internal::RootView* root_view);
+  explicit TooltipManagerViews(views::View* root_view);
   virtual ~TooltipManagerViews();
 
   // TooltipManager.
   virtual void UpdateTooltip() OVERRIDE;
   virtual void TooltipTextChanged(View* view) OVERRIDE;
   virtual void ShowKeyboardTooltip(View* view) OVERRIDE;
   virtual void HideKeyboardTooltip() OVERRIDE;
 
 #if defined(USE_WAYLAND)
   virtual base::MessagePumpObserver::EventStatus WillProcessEvent(
@@ skipping 22 matching lines @@
   void SetTooltipBounds(gfx::Point mouse_pos, int tooltip_width,
                         int tooltip_height);
 
   // Creates a widget of type TYPE_TOOLTIP
   Widget* CreateTooltip();
 
   // Invoked when the mose moves.
   void OnMouseMoved(int x, int y);
 
   scoped_ptr<Widget> tooltip_widget_;
-  internal::RootView* root_view_;
+  views::View* root_view_;
   View* tooltip_view_;
   string16 tooltip_text_;
   Label tooltip_label_;
 
   gfx::Point curr_mouse_pos_;
   base::RepeatingTimer<TooltipManagerViews> tooltip_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(TooltipManagerViews);
 };
 
 }  // namespace views
 
 #endif // VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_