Rename NOTIFICATION_EXTENSION_UNLOADED to

chrome/browser/chrome_notification_types.h

Index: chrome/browser/chrome_notification_types.h
diff --git a/chrome/browser/chrome_notification_types.h b/chrome/browser/chrome_notification_types.h
index 121fd6d949b84d8aea1faaa2a6a440c6a6f0f466..9ba710ad5076ef8996e3608c035c0d71efd4c40b 100644
--- a/chrome/browser/chrome_notification_types.h
+++ b/chrome/browser/chrome_notification_types.h
@@ -456,13 +456,15 @@ enum NotificationType {
   // Profile.
   NOTIFICATION_EXTENSION_UNINSTALL_NOT_ALLOWED,
 
+  // DEPRECATED: Use ExtensionRegistry::AddObserver instead.
+  //
   // Sent when an extension is unloaded. This happens when an extension is
   // uninstalled or disabled. The details are an UnloadedExtensionInfo, and
   // the source is a Profile.
   //
   // Note that when this notification is sent, ExtensionService has already
   // removed the extension from its internal state.
-  NOTIFICATION_EXTENSION_UNLOADED,
+  NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
 
   // Sent when an Extension object is removed from ExtensionService. This
   // can happen when an extension is uninstalled, upgraded, or blacklisted,