Begin to enable extension APIs in Extension Service Worker.

content/public/renderer/content_renderer_client.h

Index: content/public/renderer/content_renderer_client.h
diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
index d96adc9a82a7067f2874fff2a3d1f4694e5c62bc..14d7cf088568ac1754db38fcc290b059692ecbac 100644
--- a/content/public/renderer/content_renderer_client.h
+++ b/content/public/renderer/content_renderer_client.h
@@ -332,12 +332,14 @@ class CONTENT_EXPORT ContentRendererClient {
   // is called from the worker thread.
   virtual void DidInitializeServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
+      int embedded_worker_id,
       const GURL& url) {}
 
   // Notifies that a service worker context will be destroyed. This function
   // is called from the worker thread.
   virtual void WillDestroyServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
+      int embedded_worker_id,
       const GURL& url) {}
 
   // Whether this renderer should enforce preferences related to the WebRTC