Move the worker script loading code to the worker process (phase:4/5)

content/worker/worker_thread.cc

Index: content/worker/worker_thread.cc
diff --git a/content/worker/worker_thread.cc b/content/worker/worker_thread.cc
index d19701a544fc59a1377c2eea6943a973207f4642..8425c167abe93768481a910639869f47aa8bbdf4 100644
--- a/content/worker/worker_thread.cc
+++ b/content/worker/worker_thread.cc
@@ -117,18 +117,13 @@ bool WorkerThread::OnMessageReceived(const IPC::Message& msg) {
 
 void WorkerThread::OnCreateWorker(
     const WorkerProcessMsg_CreateWorker_Params& params) {
-  WorkerAppCacheInitInfo appcache_init_info(
-      params.creator_process_id,
-      params.shared_worker_appcache_id);
-
   // WebSharedWorkerStub own themselves.
   new WebSharedWorkerStub(
       params.url,
       params.name,
       params.content_security_policy,
       params.security_policy_type,
-      params.route_id,
-      appcache_init_info);
+      params.route_id);
 }
 
 // The browser process is likely dead. Terminate all workers.