Remove "Alternate frame caption button style" command line flag

ash/frame/caption_buttons/alternate_frame_size_button.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_ALTERNATE_FRAME_SIZE_BUTTON_H_
 #define ASH_FRAME_CAPTION_BUTTONS_ALTERNATE_FRAME_SIZE_BUTTON_H_
 
 #include "ash/ash_export.h"
 #include "ash/frame/caption_buttons/alternate_frame_size_button_delegate.h"
 #include "ash/frame/caption_buttons/frame_caption_button.h"
-#include "ash/wm/workspace/snap_types.h"
 #include "base/timer/timer.h"
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 class AlternateFrameSizeButtonDelegate;
 class PhantomWindowController;
 
@@ skipping 20 matching lines @@
   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseCaptureLost() OVERRIDE;
   virtual void OnMouseMoved(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
 
   void set_delay_to_set_buttons_to_snap_mode(int delay_ms) {
     set_buttons_to_snap_mode_delay_ms_ = delay_ms;
   }
 
  private:
+  enum SnapType {
+    SNAP_LEFT,
+    SNAP_RIGHT,
+    SNAP_NONE
+  };
+
   // Starts |set_buttons_to_snap_mode_timer_|.
   void StartSetButtonsToSnapModeTimer(const ui::LocatedEvent& event);
 
   // Animates the buttons adjacent to the size button to snap left and right.
   void AnimateButtonsToSnapMode();
 
   // Sets the buttons adjacent to the size button to snap left and right.
   // Passing in ANIMATE_NO progresses the animation (if any) to the end.
   void SetButtonsToSnapMode(
       AlternateFrameSizeButtonDelegate::Animate animate);
@@ skipping 47 matching lines @@
   // snapping the window left or right. The preview is only visible if the snap
   // left or snap right button is pressed.
   scoped_ptr<PhantomWindowController> phantom_window_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AlternateFrameSizeButton);
 };
 
 }  // namespace ash
 
 #endif  // ASH_FRAME_CAPTION_BUTTONS_ALTERNATE_FRAME_SIZE_BUTTON_H_