Move the concept of Activation to the Shell.

ui/views/widget/native_widget_aura.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 UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
 #pragma once
 
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
+#include "ui/aura/client/activation_delegate.h"
 #include "ui/aura/client/window_drag_drop_delegate.h"
 #include "ui/aura/window_delegate.h"
+#include "ui/aura/window_observer.h"

[sky, 2011/12/09 23:11:23]

I think you can move this to to the .cc.

 #include "ui/base/events.h"
 #include "ui/views/views_export.h"
 #include "ui/views/widget/native_widget_private.h"
 
 namespace aura {
 class Window;
 }
 namespace gfx {
 class Font;
 }
 
 namespace views {
 
 class DropHelper;
 class TooltipManagerAura;
 
 class VIEWS_EXPORT NativeWidgetAura : public internal::NativeWidgetPrivate,
                                       public aura::WindowDelegate,
+                                      public aura::ActivationDelegate,
                                       public aura::WindowDragDropDelegate {
  public:
   explicit NativeWidgetAura(internal::NativeWidgetDelegate* delegate);
   virtual ~NativeWidgetAura();
 
   // TODO(beng): Find a better place for this, and the similar method on
   //             NativeWidgetWin.
   static gfx::Font GetWindowTitleFont();
 
   // Overridden from internal::NativeWidgetPrivate:
@@ skipping 84 matching lines @@
   virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
                                const gfx::Rect& new_bounds) OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
   virtual bool OnKeyEvent(aura::KeyEvent* event) OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE;
   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
   virtual bool OnMouseEvent(aura::MouseEvent* event) OVERRIDE;
   virtual ui::TouchStatus OnTouchEvent(aura::TouchEvent* event) OVERRIDE;
   virtual bool CanFocus() OVERRIDE;
-  virtual bool ShouldActivate(aura::Event* event) OVERRIDE;
-  virtual void OnActivated() OVERRIDE;
-  virtual void OnLostActive() OVERRIDE;
   virtual void OnCaptureLost() OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void OnWindowDestroying() OVERRIDE;
   virtual void OnWindowDestroyed() OVERRIDE;
   virtual void OnWindowVisibilityChanged(bool visible) OVERRIDE;
 
+  // Overridden from aura::ActivationDelegate:
+  virtual bool ShouldActivate(aura::Event* event) OVERRIDE;
+  virtual void OnActivated() OVERRIDE;
+  virtual void OnLostActive() OVERRIDE;
+
   // Overridden from aura::WindowDragDropDelegate:
   virtual void OnDragEntered(const aura::DropTargetEvent& event) OVERRIDE;
   virtual int OnDragUpdated(const aura::DropTargetEvent& event) OVERRIDE;
   virtual void OnDragExited() OVERRIDE;
   virtual int OnPerformDrop(const aura::DropTargetEvent& event) OVERRIDE;
 
  protected:
   internal::NativeWidgetDelegate* delegate() { return delegate_; }
 
  private:
@@ skipping 20 matching lines @@
   scoped_ptr<RootWindowObserverImpl> root_window_observer_;
 
   scoped_ptr<DropHelper> drop_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetAura);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_