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

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 91 matching lines @@
   return std::min(1.0, std::max(0.0, value));
 }
 
 }  // namespace
 
 // static
 const char FrameCaptionButtonContainerView::kViewClassName[] =
     "FrameCaptionButtonContainerView";
 
 FrameCaptionButtonContainerView::FrameCaptionButtonContainerView(
-    views::Widget* frame,
-    MinimizeAllowed minimize_allowed)
+    views::Widget* frame)
     : frame_(frame),
       minimize_button_(NULL),
       size_button_(NULL),
       close_button_(NULL) {
   bool size_button_visibility = ShouldSizeButtonBeVisible();
   maximize_mode_animation_.reset(new gfx::SlideAnimation(this));
   maximize_mode_animation_->SetTweenType(gfx::Tween::LINEAR);
 
   // Ensure animation tracks visibility of size button.
   if (size_button_visibility)
     maximize_mode_animation_->Reset(1.0f);
 
   // Insert the buttons left to right.
   minimize_button_ = new FrameCaptionButton(this, CAPTION_BUTTON_ICON_MINIMIZE);
   minimize_button_->SetAccessibleName(
       l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MINIMIZE));
-  minimize_button_->SetVisible(minimize_allowed == MINIMIZE_ALLOWED);
+  minimize_button_->SetVisible(frame_->widget_delegate()->CanMinimize());
   AddChildView(minimize_button_);
 
   size_button_ = new FrameSizeButton(this, frame, this);
   size_button_->SetAccessibleName(
       l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MAXIMIZE));
   size_button_->SetVisible(size_button_visibility);
   AddChildView(size_button_);
 
   close_button_ = new FrameCaptionButton(this, CAPTION_BUTTON_ICON_CLOSE);
   close_button_->SetAccessibleName(
@@ skipping 291 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