Revert 114095 - Move the concept of Activation to the Shell.

ui/aura/client/activation_delegate.h

Index: ui/aura/client/activation_delegate.h
===================================================================
--- ui/aura/client/activation_delegate.h	(revision 114098)
+++ ui/aura/client/activation_delegate.h	(working copy)
@@ -1,43 +0,0 @@
-// 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_AURA_CLIENT_ACTIVATION_DELEGATE_H_
-#define UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_
-#pragma once
-
-#include "ui/aura/aura_export.h"
-
-namespace aura {
-
-class Event;
-class Window;
-
-// An interface implemented by an object that configures and responds to changes
-// to a window's activation state.
-class AURA_EXPORT ActivationDelegate {
- public:
-  // Sets/Gets the ActivationDelegate on the Window. No ownership changes.
-  static void SetActivationDelegate(Window* window,
-                                    ActivationDelegate* delegate);
-  static ActivationDelegate* GetActivationDelegate(Window* window);
-
-  // Returns true if the window should be activated. |event| is either the mouse
-  // event supplied if the activation is the result of a mouse, or the touch
-  // event if the activation is the result of a touch, or NULL if activation is
-  // attempted for another reason.
-  virtual bool ShouldActivate(Event* event) = 0;
-
-  // Sent when the window is activated.
-  virtual void OnActivated() = 0;
-
-  // Sent when the window loses active status.
-  virtual void OnLostActive() = 0;
-
- protected:
-  virtual ~ActivationDelegate() {}
-};
-
-}  // namespace aura
-
-#endif  // UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_