aura: Ask the WindowDelegate before a Window is Focus()ed.

ui/aura/test/test_window_delegate.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_AURA_TEST_TEST_WINDOW_DELEGATE_H_
 #define UI_AURA_TEST_TEST_WINDOW_DELEGATE_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 12 matching lines @@
   virtual gfx::Size GetMinimumSize() const OVERRIDE;
   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(KeyEvent* event) OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE;
   virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
   virtual bool OnMouseEvent(MouseEvent* event) OVERRIDE;
   virtual ui::TouchStatus OnTouchEvent(TouchEvent* event) OVERRIDE;
+  virtual bool CanFocus() OVERRIDE;
   virtual bool ShouldActivate(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;
 
  private:
@@ skipping 45 matching lines @@
   int lost_active_count_;
   int should_activate_count_;
 
   DISALLOW_COPY_AND_ASSIGN(ActivateWindowDelegate);
 };
 
 }  // namespace test
 }  // namespace aura
 
 #endif  // UI_AURA_TEST_TEST_WINDOW_DELEGATE_H_