Remove "Alternate frame caption button style" command line flag

ash/frame/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_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
 #define ASH_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
 
 #include "ash/ash_export.h"
 #include "ash/frame/caption_buttons/alternate_frame_size_button_delegate.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/view.h"
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 class FrameCaptionButton;
-class FrameMaximizeButton;
 
 // Container view for the frame caption buttons. It performs the appropriate
 // action when a caption button is clicked.
 class ASH_EXPORT FrameCaptionButtonContainerView
     : public views::View,
       public views::ButtonListener,
       public AlternateFrameSizeButtonDelegate {
  public:
   static const char kViewClassName[];
 
@@ skipping 29 matching lines @@
     FrameCaptionButton* close_button() const {
       return container_view_->close_button_;
     }
 
    private:
     FrameCaptionButtonContainerView* container_view_;
 
     DISALLOW_COPY_AND_ASSIGN(TestApi);
   };
 
-  // Returns the size button if using the old caption button style, returns NULL
-  // otherwise.
-  FrameMaximizeButton* GetOldStyleSizeButton();
-
   // Sets the resource ids of the images to paint the button for |icon|. The
   // FrameCaptionButtonContainerView will keep track of the images to use for
   // |icon| even if none of the buttons currently use |icon|.
   void SetButtonImages(CaptionButtonIcon icon,
                        int icon_image_id,
                        int inactive_icon_image_id,
                        int hovered_background_image_id,
                        int pressed_background_image_id);
 
   // Sets whether the buttons should be painted as active. Does not schedule
@@ skipping 71 matching lines @@
   // 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_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_