Do not initialize event routers in the Profile Import process.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
===================================================================
--- chrome/browser/extensions/extension_service.cc	(revision 97857)
+++ chrome/browser/extensions/extension_service.cc	(working copy)
@@ -670,6 +670,11 @@
   }
 }
 
+void ExtensionService::InitEventRoutersAfterImport() {
+  registrar_.Add(this, chrome::NOTIFICATION_IMPORT_FINISHED,
+                 Source<Profile>(profile_));
+}
+
 void ExtensionService::InitEventRouters() {
   if (event_routers_initialized_)
     return;
@@ -2690,6 +2695,12 @@
       }
       break;
     }
+    case chrome::NOTIFICATION_IMPORT_FINISHED: {
+      registrar_.Remove(this, chrome::NOTIFICATION_IMPORT_FINISHED,
+                        Source<Profile>(profile_));
+      InitEventRouters();
+      break;
+    }
 
     default:
       NOTREACHED() << "Unexpected notification type.";