Remove debugging code which affects behavior in stable in FrameCaptionButtonContainerView

ash/frame/caption_buttons/frame_caption_button_container_view.cc

 // 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.
 
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 
 #include <cmath>
 #include <map>
 
 #include "ash/ash_switches.h"
@@ skipping 304 matching lines @@
 }
 
 bool FrameCaptionButtonContainerView::ShouldSizeButtonBeVisible() const {
   return !Shell::GetInstance()->maximize_mode_controller()->
       IsMaximizeModeWindowManagerEnabled() &&
       frame_->widget_delegate()->CanMaximize();
 }
 
 void FrameCaptionButtonContainerView::ButtonPressed(views::Button* sender,
                                                     const ui::Event& event) {
-  // When shift-clicking, slow down animations for visual debugging.
-  // We used to do this via an event filter that looked for the shift key being
-  // pressed but this interfered with several normal keyboard shortcuts.
-  scoped_ptr<ui::ScopedAnimationDurationScaleMode> slow_duration_mode;
-  if (event.IsShiftDown()) {
-    slow_duration_mode.reset(new ui::ScopedAnimationDurationScaleMode(
-        ui::ScopedAnimationDurationScaleMode::SLOW_DURATION));
-  }
-
   // Abort any animations of the button icons.
   SetButtonsToNormal(ANIMATE_NO);
 
   ash::UserMetricsAction action =
       ash::UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_MINIMIZE;
   if (sender == minimize_button_) {
     frame_->Minimize();
   } else if (sender == size_button_) {
     if (frame_->IsFullscreen()) {  // Can be clicked in immersive fullscreen.
       frame_->Restore();
@@ skipping 97 matching lines @@
     : icon_image_id(icon_id),
       inactive_icon_image_id(inactive_icon_id),
       hovered_background_image_id(hovered_background_id),
       pressed_background_image_id(pressed_background_id) {
 }
 
 FrameCaptionButtonContainerView::ButtonIconIds::~ButtonIconIds() {
 }
 
 }  // namespace ash