Remove unused code from MessageCenterNotificationManager.

chrome/browser/notifications/message_center_notification_manager.cc

Index: chrome/browser/notifications/message_center_notification_manager.cc
diff --git a/chrome/browser/notifications/message_center_notification_manager.cc b/chrome/browser/notifications/message_center_notification_manager.cc
index 46d22de75999192f123c5376c5720923934fd1d5..5ea8d2421cfbc77b2e2b2057719c3a8437b5d5e2 100644
--- a/chrome/browser/notifications/message_center_notification_manager.cc
+++ b/chrome/browser/notifications/message_center_notification_manager.cc
@@ -9,7 +9,6 @@
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
-#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/notification_provider/notification_provider_api.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
@@ -21,17 +20,11 @@
 #include "chrome/browser/notifications/notification_conversion_helper.h"
 #include "chrome/browser/notifications/screen_lock_notification_blocker.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/browser_finder.h"
-#include "chrome/browser/ui/chrome_pages.h"
-#include "chrome/browser/ui/host_desktop.h"
 #include "chrome/common/extensions/api/notification_provider.h"
 #include "chrome/common/pref_names.h"
-#include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_system.h"
-#include "extensions/browser/info_map.h"
 #include "extensions/common/extension_set.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "ui/gfx/image/image_skia.h"
@@ -94,9 +87,6 @@ MessageCenterNotificationManager::MessageCenterNotificationManager(
   // views.Other platforms have global ownership and Create will return NULL.
   tray_.reset(message_center::CreateMessageCenterTray());
 #endif
-  registrar_.Add(this,
-                 chrome::NOTIFICATION_FULLSCREEN_CHANGED,
-                 content::NotificationService::AllSources());
 }
 
 MessageCenterNotificationManager::~MessageCenterNotificationManager() {
@@ -325,18 +315,6 @@ void MessageCenterNotificationManager::SetMessageCenterTrayDelegateForTest(
   tray_.reset(delegate);
 }
 
-void MessageCenterNotificationManager::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  if (type == chrome::NOTIFICATION_FULLSCREEN_CHANGED) {
-    const bool is_fullscreen = *content::Details<bool>(details).ptr();
-
-    if (is_fullscreen && tray_.get() && tray_->GetMessageCenterTray())
-      tray_->GetMessageCenterTray()->HidePopupBubble();
-  }
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // ImageDownloads