Hide notifications popups when entering fullscreen mode.

chrome/browser/ui/cocoa/notifications/message_center_tray_bridge.mm

 // 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 "chrome/browser/ui/cocoa/notifications/message_center_tray_bridge.h"
 
 #include "base/bind.h"
 #include "base/i18n/number_formatting.h"
 #include "base/message_loop.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 66 matching lines @@
   [tray_controller_ close];
   tray_controller_.autorelease();
 }
 
 bool MessageCenterTrayBridge::ShowNotifierSettings() {
   // This method needs to be implemented when the context menu of each
   // notification is ready and it contains 'settings' menu item.
   return false;
 }
 
+message_center::MessageCenterTray*
+MessageCenterTrayBridge::GetMessageCenterTray() {
+  return tray_.get();
+}
+
 void MessageCenterTrayBridge::UpdateStatusItem() {
   // Only show the status item if there are notifications.
   if (message_center_->NotificationCount() == 0) {
     [status_item_view_ removeItem];
     status_item_view_.reset();
     return;
   }
 
   if (!status_item_view_) {
     status_item_view_.reset([[MCStatusItemView alloc] init]);
@@ skipping 22 matching lines @@
 
   UpdateStatusItem();
 
   [status_item_view_ setHighlight:YES];
   NSRect frame = [[status_item_view_ window] frame];
   [tray_controller_ showTrayAtRightOf:NSMakePoint(NSMinX(frame),
                                                   NSMinY(frame))
                              atLeftOf:NSMakePoint(NSMaxX(frame),
                                                   NSMinY(frame))];
 }