Add chrome-search: access from Instant overlay

chrome/browser/instant/instant_service_factory.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/instant/instant_service_factory.h"
 
 #include "chrome/browser/instant/instant_service.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 
 // static
@@ skipping 13 matching lines @@
   // No dependencies.
 }
 
 InstantServiceFactory::~InstantServiceFactory() {
 }
 
 bool InstantServiceFactory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
+bool InstantServiceFactory::ServiceIsNULLWhileTesting() const {
+  return false;
+}
+
 ProfileKeyedService* InstantServiceFactory::BuildServiceInstanceFor(
     Profile* profile) const {
-  return new InstantService;
+  return new InstantService(profile);
 }