[Extensions] Don't allow extensions to inject scripts into extension pages

extensions/renderer/script_injection_manager.cc

 // Copyright 2014 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 "extensions/renderer/script_injection_manager.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
@@ skipping 395 matching lines @@
   } else if (params.host_id.type() == HostID::WEBUI) {
     injection_host.reset(
         new WebUIInjectionHost(params.host_id));
   }
 
   scoped_ptr<ScriptInjection> injection(new ScriptInjection(
       scoped_ptr<ScriptInjector>(
           new ProgrammaticScriptInjector(params, render_frame)),
       render_frame,
       injection_host.Pass(),
-      static_cast<UserScript::RunLocation>(params.run_at),
-      ExtensionFrameHelper::Get(render_frame)->tab_id()));
+      static_cast<UserScript::RunLocation>(params.run_at)));
 
   FrameStatusMap::const_iterator iter = frame_statuses_.find(render_frame);
   UserScript::RunLocation run_location =
       iter == frame_statuses_.end() ? UserScript::UNDEFINED : iter->second;
 
   ScriptsRunInfo scripts_run_info(render_frame, run_location);
   TryToInject(injection.Pass(), run_location, &scripts_run_info);
 }
 
 void ScriptInjectionManager::HandleExecuteDeclarativeScript(
@@ skipping 43 matching lines @@
   ScriptsRunInfo scripts_run_info(injection->render_frame(),
                                   UserScript::RUN_DEFERRED);
   ScriptInjection::InjectionResult res = injection->OnPermissionGranted(
       &scripts_run_info);
   if (res == ScriptInjection::INJECTION_BLOCKED)
     running_injections_.push_back(injection.Pass());
   scripts_run_info.LogRun();
 }
 
 }  // namespace extensions