Revert of Elimate NOTIFICATION_GOOGLE_URL_UPDATED

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 9303cac9c659d6ee4d97d78ba59010bb07a23334..5358926cb805d5fdcd4e6d052fb06ac456d58f5f 100644
--- a/chrome/browser/chrome_notification_types.h
+++ b/chrome/browser/chrome_notification_types.h
@@ -352,6 +352,18 @@
 
   // This is sent from Instant when the omnibox focus state changes.
   NOTIFICATION_OMNIBOX_FOCUS_CHANGED,
+
+  // Sent when the Google URL for a profile has been updated.  Some services
+  // cache this value and need to update themselves when it changes.  See
+  // google_util::GetGoogleURLAndUpdateIfNecessary().  The source is the
+  // Profile, the details a GoogleURLTracker::UpdatedDetails containing the old
+  // and new URLs.
+  //
+  // Note that because incognito mode requests for the GoogleURLTracker are
+  // redirected to the non-incognito profile's copy, this notification will only
+  // ever fire on non-incognito profiles; thus listeners should use
+  // GetOriginalProfile() when constructing a Source to filter against.
+  NOTIFICATION_GOOGLE_URL_UPDATED,
 
   // Printing ----------------------------------------------------------------