Move extension notifications to extensions/browser/notification_types.h

chrome/browser/sync/glue/extensions_activity_monitor.cc

Index: chrome/browser/sync/glue/extensions_activity_monitor.cc
diff --git a/chrome/browser/sync/glue/extensions_activity_monitor.cc b/chrome/browser/sync/glue/extensions_activity_monitor.cc
index 57687180bffe9438b6740ee3c8468c384637d003..b7b23912c5c75a64606fc68ffb9bc0ad8bec9e10 100644
--- a/chrome/browser/sync/glue/extensions_activity_monitor.cc
+++ b/chrome/browser/sync/glue/extensions_activity_monitor.cc
@@ -25,7 +25,7 @@ ExtensionsActivityMonitor::ExtensionsActivityMonitor()
   // wanted to use the string name).  Thus, we use all sources and filter in
   // Observe.
   registrar_.Add(this,
-                 chrome::NOTIFICATION_EXTENSION_BOOKMARKS_API_INVOKED,
+                 extensions::NOTIFICATION_EXTENSION_BOOKMARKS_API_INVOKED,
                  content::NotificationService::AllSources());
 }