Remove TransparentActivateWindowButton from Overview Mode

ash/wm/overview/scoped_transform_overview_window.h

 // Copyright 2013 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 ASH_WM_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_
 #define ASH_WM_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_
 
 #include "ash/wm/overview/scoped_overview_animation_settings.h"
-#include "ash/wm/overview/transparent_activate_window_button.h"
-#include "ash/wm/overview/transparent_activate_window_button_delegate.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/transform.h"
 #include "ui/views/widget/widget.h"
 
 namespace aura {
 class Window;
 }
 
 namespace ui {
 class Layer;
 }
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 
 class ScopedWindowCopy;
 
 // Manages a window, and it's transient children, in the overview mode. This
 // class allows transforming the windows with a helper to determine the best
 // fit in certain bounds. The window's state is restored on destruction of this
 // object.
-class ScopedTransformOverviewWindow
-    : public TransparentActivateWindowButtonDelegate {
+class ScopedTransformOverviewWindow {
  public:
   typedef ScopedVector<ScopedOverviewAnimationSettings> ScopedAnimationSettings;
 
   // Returns |rect| having been shrunk to fit within |bounds| (preserving the
   // aspect ratio).
   static gfx::Rect ShrinkRectToFitPreservingAspectRatio(
       const gfx::Rect& rect,
       const gfx::Rect& bounds);
 
   // Returns the transform turning |src_rect| into |dst_rect|.
   static gfx::Transform GetTransformForRect(const gfx::Rect& src_rect,
                                             const gfx::Rect& dst_rect);
 
   explicit ScopedTransformOverviewWindow(aura::Window* window);
-  ~ScopedTransformOverviewWindow() override;
+  ~ScopedTransformOverviewWindow();
 
   gfx::Transform get_overview_transform() const { return overview_transform_; }
 
   void set_overview_transform(const gfx::Transform& transform) {
     overview_transform_ = transform;
   }
 
-  TransparentActivateWindowButton* activate_button() {
-    return activate_button_.get();
-  }
-
   // Starts an animation sequence which will use animation settings specified by
   // |animation_type|. The |animation_settings| container is populated with
   // scoped entities and the container should be destroyed at the end of the
   // animation sequence.
   //
   // Example:
   //  ScopedTransformOverviewWindow overview_window(window);
   //  ScopedTransformOverviewWindow::ScopedAnimationSettings scoped_settings;
   //  overview_window.BeginScopedAnimation(
   //      OverviewAnimationType::OVERVIEW_ANIMATION_SELECTOR_ITEM_SCROLL_CANCEL,
@@ skipping 32 matching lines @@
                     const gfx::Transform& transform);
 
   // Set's the opacity of the managed windows.
   void SetOpacity(float opacity);
 
   aura::Window* window() const { return window_; }
 
   // Closes the transient root of the window managed by |this|.
   void Close();
 
-  // ash::TransparentActivateWindowButtonDelegate:
-  void Select() override;
-
  private:
   // Shows the window if it was minimized.
   void ShowWindowIfMinimized();
 
   // A weak pointer to the real window in the overview.
   aura::Window* window_;
 
-  // The transparent overlay that captures events.
-  scoped_ptr<TransparentActivateWindowButton> activate_button_;
-
   // If true, the window was minimized and should be restored if the window
   // was not selected.
   bool minimized_;
 
   // Tracks if this window was ignored by the shelf.
   bool ignored_by_shelf_;
 
   // True if the window has been transformed for overview mode.
   bool overview_started_;
 
   // The original transform of the window before entering overview mode.
   gfx::Transform original_transform_;
 
   // Keeps track of the original transform used when |this| has been positioned
   // during SelectorItem layout.
   gfx::Transform overview_transform_;
 
   // The original opacity of the window before entering overview mode.
   float original_opacity_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedTransformOverviewWindow);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_SCOPED_TRANSFORM_OVERVIEW_WINDOW_H_