Implement Non-Closable Notification

ui/message_center/views/message_center_button_bar.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 "ui/message_center/views/message_center_button_bar.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 249 matching lines @@
     close_all_button_->SetEnabled(enabled);
   settings_button_->SetEnabled(enabled);
   quiet_mode_button_->SetEnabled(enabled);
 }
 
 void MessageCenterButtonBar::SetCloseAllButtonEnabled(bool enabled) {
   if (close_all_button_)
     close_all_button_->SetEnabled(enabled);
 }
 
+views::Button* MessageCenterButtonBar::GetCloseAllButtonForTest() const {
+  return close_all_button_;
+}
+
 void MessageCenterButtonBar::SetBackArrowVisible(bool visible) {
   if (title_arrow_)
     title_arrow_->SetVisible(visible);
   ViewVisibilityChanged();
   Layout();
 }
 
 void MessageCenterButtonBar::ChildVisibilityChanged(views::View* child) {
   InvalidateLayout();
 }
 
 void MessageCenterButtonBar::ButtonPressed(views::Button* sender,
                                            const ui::Event& event) {
   if (sender == close_all_button_) {
-    message_center_view()->ClearAllNotifications();
+    message_center_view()->ClearAllClosableNotifications();
   } else if (sender == settings_button_ || sender == title_arrow_) {
     MessageCenterView* center_view = message_center_view();
     center_view->SetSettingsVisible(!center_view->settings_visible());
   } else if (sender == quiet_mode_button_) {
     if (message_center()->IsQuietMode())
       message_center()->SetQuietMode(false);
     else
       message_center()->EnterQuietModeWithExpire(base::TimeDelta::FromDays(1));
     quiet_mode_button_->SetToggled(message_center()->IsQuietMode());
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   } else if (sender == close_bubble_button_) {
     message_center_view()->tray()->HideMessageCenterBubble();
 #endif
   } else {
     NOTREACHED();
   }
 }
 
 }  // namespace message_center