ash: Update system update notification behaviour.

chrome/browser/chromeos/system/ash_system_tray_delegate.cc

 // Copyright (c) 2012 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/chromeos/system/ash_system_tray_delegate.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/audio/audio_observer.h"
 #include "ash/system/bluetooth/bluetooth_observer.h"
@@ skipping 994 matching lines @@
   virtual void OnCellularDataPlanChanged(NetworkLibrary* crosnet) OVERRIDE {
     NotifyRefreshNetwork();
   }
 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE {
     switch (type) {
       case chrome::NOTIFICATION_UPGRADE_RECOMMENDED: {
+        UpgradeDetector* detector =
+            content::Source<UpgradeDetector>(source).ptr();
+        ash::UpdateObserver::UpdateSeverity severity =
+            ash::UpdateObserver::UPDATE_NORMAL;
+        switch (detector->upgrade_notification_stage()) {
+          case UpgradeDetector::UPGRADE_ANNOYANCE_SEVERE:
+            severity = ash::UpdateObserver::UPDATE_SEVERE_RED;
+            break;
+
+          case UpgradeDetector::UPGRADE_ANNOYANCE_HIGH:
+            severity = ash::UpdateObserver::UPDATE_HIGH_ORANGE;
+            break;
+
+          case UpgradeDetector::UPGRADE_ANNOYANCE_ELEVATED:
+            severity = ash::UpdateObserver::UPDATE_LOW_GREEN;
+            break;
+
+          case UpgradeDetector::UPGRADE_ANNOYANCE_LOW:
+          default:
+            severity = ash::UpdateObserver::UPDATE_NORMAL;
+            break;
+        }
         ash::UpdateObserver* observer = tray_->update_observer();
         if (observer)
-          observer->OnUpdateRecommended();
+          observer->OnUpdateRecommended(severity);
         break;
       }
       case chrome::NOTIFICATION_LOGIN_USER_IMAGE_CHANGED: {
         // This notification is also sent on login screen when user avatar
         // is loaded from file.
         if (GetUserLoginStatus() != ash::user::LOGGED_IN_NONE) {
           ash::UserObserver* observer = tray_->user_observer();
           if (observer)
             observer->OnUserUpdate();
         }
@@ skipping 214 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegate);
 };
 
 }  // namespace
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate(ash::SystemTray* tray) {
   return new chromeos::SystemTrayDelegate(tray);
 }
 
 }  // namespace chromeos