Allow all app windows to minimize.

components/native_app_window/native_app_window_views.cc

 // Copyright 2014 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 "components/native_app_window/native_app_window_views.h"
 
 #include "base/threading/sequenced_worker_pool.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 201 matching lines @@
   return resizable_ && !size_constraints_.HasFixedSize() &&
          !WidgetHasHitTestMask();
 }
 
 bool NativeAppWindowViews::CanMaximize() const {
   return resizable_ && !size_constraints_.HasMaximumSize() &&
          !app_window_->window_type_is_panel() && !WidgetHasHitTestMask();
 }
 
 bool NativeAppWindowViews::CanMinimize() const {
-  // TODO(jackhou): Change this to always be true.
-  return CanMaximize();
+  return true;
 }
 
 base::string16 NativeAppWindowViews::GetWindowTitle() const {
   return app_window_->GetTitle();
 }
 
 bool NativeAppWindowViews::ShouldShowWindowTitle() const {
   return app_window_->window_type() == AppWindow::WINDOW_TYPE_V1_PANEL;
 }
 
@@ skipping 205 matching lines @@
 
 bool NativeAppWindowViews::CanHaveAlphaEnabled() const {
   return widget_->IsTranslucentWindowOpacitySupported();
 }
 
 void NativeAppWindowViews::SetVisibleOnAllWorkspaces(bool always_visible) {
   widget_->SetVisibleOnAllWorkspaces(always_visible);
 }
 
 }  // namespace native_app_window