Notifications: Add cross-platform UMA: ShowMessageCenter, ShowSettings.

ui/message_center/views/message_center_view.cc

 // Copyright (c) 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_view.h"
 
 #include <list>
 #include <map>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 916 matching lines @@
       message_views_[index] = view;
       NotificationsChanged();
       break;
     }
   }
 }
 
 void MessageCenterView::AnimationEnded(const ui::Animation* animation) {
   DCHECK_EQ(animation, settings_transition_animation_.get());
 
+  Visibility visibility = target_view_ == settings_view_
+                              ? VISIBILITY_SETTINGS
+                              : VISIBILITY_MESSAGE_CENTER;
+  message_center_->SetVisibility(visibility);
+
   source_view_->SetVisible(false);
   target_view_->SetVisible(true);
   if (source_view_->layer())
     source_view_->layer()->SetOpacity(1.0);
   if (target_view_->layer())
     target_view_->layer()->SetOpacity(1.0);
   settings_transition_animation_.reset();
   PreferredSizeChanged();
   Layout();
 }
@@ skipping 46 matching lines @@
   scroller_->InvalidateLayout();
   PreferredSizeChanged();
   Layout();
 }
 
 void MessageCenterView::SetNotificationViewForTest(views::View* view) {
   message_list_view_->AddNotificationAt(view, 0);
 }
 
 }  // namespace message_center