Introduce chrome.shell.createWindow stub API for app_shell

apps/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 "apps/shell/renderer/shell_content_renderer_client.h"
 
 #include "apps/shell/common/shell_extensions_client.h"
 #include "apps/shell/renderer/shell_extensions_renderer_client.h"
 #include "chrome/renderer/extensions/dispatcher.h"
 #include "chrome/renderer/extensions/extension_helper.h"
@@ skipping 46 matching lines @@
 
 }  // namespace
 
 ShellContentRendererClient::ShellContentRendererClient() {}
 
 ShellContentRendererClient::~ShellContentRendererClient() {}
 
 void ShellContentRendererClient::RenderThreadStarted() {
   RenderThread* thread = RenderThread::Get();
 
-  extension_dispatcher_.reset(new extensions::Dispatcher());
-  thread->AddObserver(extension_dispatcher_.get());
-
-  // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
-  // See ChromeContentRendererClient for details.
-
   extensions_client_.reset(new ShellExtensionsClient);
   extensions::ExtensionsClient::Set(extensions_client_.get());
 
   extensions_renderer_client_.reset(new ShellExtensionsRendererClient);
   extensions::ExtensionsRendererClient::Set(extensions_renderer_client_.get());
+
+  // Must be initialized after ExtensionsRendererClient.
+  extension_dispatcher_.reset(new extensions::Dispatcher());
+  thread->AddObserver(extension_dispatcher_.get());
+
+  // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
+  // See ChromeContentRendererClient for details.
 }
 
 void ShellContentRendererClient::RenderFrameCreated(
     content::RenderFrame* render_frame) {
   // ShellFrameHelper destroyes itself when the RenderFrame is destroyed.
   new ShellFrameHelper(render_frame, extension_dispatcher_.get());
 }
 
 void ShellContentRendererClient::RenderViewCreated(
     content::RenderView* render_view) {
@@ skipping 16 matching lines @@
   extension_dispatcher_->DidCreateScriptContext(
       frame, context, extension_group, world_id);
 }
 
 bool ShellContentRendererClient::ShouldEnableSiteIsolationPolicy() const {
   // Extension renderers don't need site isolation.
   return false;
 }
 
 }  // namespace apps