Revert of Make WindowState::CanMinimize() take into account WidgetDelegate::CanMinimize()

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h"
 
 #include <algorithm>
 
 #include "ash/frame/caption_buttons/frame_caption_button.h"
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
@@ skipping 96 matching lines @@
 }
 
 BrowserNonClientFrameViewAsh::~BrowserNonClientFrameViewAsh() {
   ash::Shell::GetInstance()->RemoveShellObserver(this);
   // browser_view() outlives the frame, as destruction of sibling views happens
   // in the same order as creation - see BrowserView::CreateBrowserWindow.
   chrome::RemoveCommandObserver(browser_view()->browser(), IDC_BACK, this);
 }
 
 void BrowserNonClientFrameViewAsh::Init() {
-  caption_button_container_ = new ash::FrameCaptionButtonContainerView(frame());
+  caption_button_container_ = new ash::FrameCaptionButtonContainerView(frame(),
+      ash::FrameCaptionButtonContainerView::MINIMIZE_ALLOWED);
   caption_button_container_->UpdateSizeButtonVisibility();
   AddChildView(caption_button_container_);
 
   // Initializing the TabIconView is expensive, so only do it if we need to.
   if (browser_view()->ShouldShowWindowIcon()) {
     window_icon_ = new TabIconView(this, NULL);
     window_icon_->set_is_light(true);
     AddChildView(window_icon_);
     window_icon_->Update();
   }
@@ skipping 515 matching lines @@
   canvas->FillRect(gfx::Rect(0, caption_button_container_->bounds().bottom(),
                              width(), kClientEdgeThickness),
                    ThemeProperties::GetDefaultColor(
                        ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 }
 
 void BrowserNonClientFrameViewAsh::UpdateBackButtonState(bool enabled) {
   web_app_back_button_->SetState(enabled ? views::Button::STATE_NORMAL
                                          : views::Button::STATE_DISABLED);
 }