Fixing script injection in app_shell.

extensions/shell/renderer/shell_content_renderer_client.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/shell/renderer/shell_content_renderer_client.h"
 
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/public/renderer/render_frame_observer_tracker.h"
 #include "content/public/renderer/render_thread.h"
@@ skipping 93 matching lines @@
   // It doesn't seem necessary for either Pepper or NaCl.
   // http://crbug.com/403004
 #if !defined(DISABLE_NACL)
   new nacl::NaClHelper(render_frame);
 #endif
 }
 
 void ShellContentRendererClient::RenderViewCreated(
     content::RenderView* render_view) {
   new ExtensionHelper(render_view, extension_dispatcher_.get());
+  extension_dispatcher_->OnRenderViewCreated(render_view);
 }
 
 bool ShellContentRendererClient::OverrideCreatePlugin(
     content::RenderFrame* render_frame,
     blink::WebLocalFrame* frame,
     const blink::WebPluginParams& params,
     blink::WebPlugin** plugin) {
   // Allow the content module to create the plugin.
   return false;
 }
@@ skipping 51 matching lines @@
 }
 
 content::BrowserPluginDelegate*
 ShellContentRendererClient::CreateBrowserPluginDelegate(
     content::RenderFrame* render_frame,
     const std::string& mime_type) {
   return new extensions::GuestViewContainer(render_frame, mime_type);
 }
 
 }  // namespace extensions