Changes in app.window and app.runtime to support lock screen note taking

extensions/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 "extensions/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.h"
 #include "content/public/browser/render_widget_host_view.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 {
-  return true;
+  return !app_window_->show_on_lock_screen();
 }
 
 base::string16 NativeAppWindowViews::GetWindowTitle() const {
   return app_window_->GetTitle();
 }
 
 bool NativeAppWindowViews::ShouldShowWindowTitle() const {
   return false;
 }
 
@@ skipping 198 matching lines @@
   return widget_->IsTranslucentWindowOpacitySupported();
 }
 
 void NativeAppWindowViews::SetVisibleOnAllWorkspaces(bool always_visible) {
   widget_->SetVisibleOnAllWorkspaces(always_visible);
 }
 
 void NativeAppWindowViews::SetActivateOnPointer(bool activate_on_pointer) {}
 
 }  // namespace native_app_window