Keep incognito notification preferences separate from regular ones, and don't...

chrome/browser/profile.cc

Index: chrome/browser/profile.cc
===================================================================
--- chrome/browser/profile.cc	(revision 33305)
+++ chrome/browser/profile.cc	(working copy)
@@ -448,7 +448,11 @@
   }
 
   virtual DesktopNotificationService* GetDesktopNotificationService() {
-    return profile_->GetDesktopNotificationService();
+    if (!desktop_notification_service_.get()) {
+      desktop_notification_service_.reset(new DesktopNotificationService(
+          this, g_browser_process->notification_ui_manager()));
+    }
+    return desktop_notification_service_.get();
   }
 
   virtual ProfileSyncService* GetProfileSyncService() {
@@ -542,6 +546,9 @@
   // The download manager that only stores downloaded items in memory.
   scoped_refptr<DownloadManager> download_manager_;
 
+  // Use a separate desktop notification service for OTR.
+  scoped_ptr<DesktopNotificationService> desktop_notification_service_;
+
   // Use a special WebKit context for OTR browsing.
   scoped_refptr<WebKitContext> webkit_context_;