Add user script support to extensions.

chrome/test/testing_profile.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_TEST_TESTING_PROFILE_H_
 #define CHROME_TEST_TESTING_PROFILE_H_
 
 #include "base/base_paths.h"
 #include "base/path_service.h"
 #include "base/file_util.h"
@@ skipping 146 matching lines @@
   }
   virtual void ResetTabRestoreService() {
   }
   virtual void ReinitializeSpellChecker() {
   }
   virtual SpellChecker* GetSpellChecker() {
     return NULL;
   }
   virtual void MarkAsCleanShutdown() {
   }
+  virtual void InitExtensions() {
+  }
 
 #ifdef CHROME_PERSONALIZATION
   virtual ProfilePersonalization* GetProfilePersonalization() {
     return NULL;
   }
 #endif
 
  protected:
   // The path of the profile; the various database and other files are relative
   // to this.
@@ skipping 24 matching lines @@
 
   std::wstring id_;
 
   bool off_the_record_;
 
   // Did the last session exit cleanly? Default is true.
   bool last_session_exited_cleanly_;
 };
 
 #endif  // CHROME_TEST_TESTING_PROFILE_H_