Keep the size button pressed when the user hovers the snap left or snap right button

ash/wm/caption_buttons/frame_caption_button_container_view.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_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
 #define ASH_WM_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "ash/wm/caption_buttons/alternate_frame_size_button_delegate.h"
 #include "ui/gfx/image/image_skia.h"
@@ skipping 106 matching lines @@
   // views::ButtonListener override:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
   // AlternateFrameSizeButton::Delegate overrides:
   virtual bool IsMinimizeButtonVisible() const OVERRIDE;
   virtual void SetButtonsToNormal(Animate animate) OVERRIDE;
   virtual void SetButtonIcons(CaptionButtonIcon minimize_button_icon,
                               CaptionButtonIcon close_button_icon,
                               Animate animate) OVERRIDE;
-  virtual const FrameCaptionButton* PressButtonAt(
-      const gfx::Point& position_in_screen,
-      const gfx::Insets& pressed_hittest_outer_insets) const OVERRIDE;
+  virtual const FrameCaptionButton* GetButtonClosestTo(
+      const gfx::Point& position_in_screen) const OVERRIDE;
+  virtual void SetHoveredAndPressedButtons(
+      const FrameCaptionButton* to_hover,
+      const FrameCaptionButton* to_press) OVERRIDE;
 
   // The widget that the buttons act on.
   views::Widget* frame_;
 
   // The close button separator.
   gfx::ImageSkia button_separator_;
 
   // The buttons. In the normal button style, at most one of |minimize_button_|
   // and |size_button_| is visible.
   FrameCaptionButton* minimize_button_;
   FrameCaptionButton* size_button_;
   FrameCaptionButton* close_button_;
 
   // Mapping of the images needed to paint a button for each of the values of
   // CaptionButtonIcon.
   std::map<CaptionButtonIcon, ButtonIconIds> button_icon_id_map_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameCaptionButtonContainerView);
 };
 
 }  // namesapace ash
 
 #endif  // ASH_WM_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_