Refactored code to allow associating workers with multiple renderers.

chrome/common/render_messages_internal.h

Index: chrome/common/render_messages_internal.h
diff --git a/chrome/common/render_messages_internal.h b/chrome/common/render_messages_internal.h
index fcf448ca6f5f2b095e93b49a4721d4859875a6c9..f7a37a4a818506355bbd144613bd2efc43395ff6 100644
--- a/chrome/common/render_messages_internal.h
+++ b/chrome/common/render_messages_internal.h
@@ -1749,11 +1749,8 @@ IPC_BEGIN_MESSAGES(ViewHost)
   // A renderer sends this to the browser process when it wants to create a
   // worker.  The browser will create the worker process if necessary, and
   // will return the route id on success.  On error returns MSG_ROUTING_NONE.
-  IPC_SYNC_MESSAGE_CONTROL4_1(ViewHostMsg_CreateWorker,
-                              GURL /* url */,
-                              bool /* is_shared */,
-                              string16 /* name */,
-                              int /* render_view_route_id */,
+  IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_CreateWorker,
+                              ViewHostMsg_CreateWorker_Params,
                               int /* route_id */)
 
   // This message is sent to the browser to see if an instance of this shared
@@ -1763,10 +1760,11 @@ IPC_BEGIN_MESSAGES(ViewHost)
   // the existing worker. If a matching worker is found, the passed-in
   // document_id is associated with that worker, to ensure that the worker
   // stays alive until the document is detached.
-  IPC_SYNC_MESSAGE_CONTROL3_2(ViewHostMsg_LookupSharedWorker,
+  IPC_SYNC_MESSAGE_CONTROL4_2(ViewHostMsg_LookupSharedWorker,
                               GURL /* url */,
                               string16 /* name */,
                               unsigned long long /* document_id */,
+                              int /* render_view_route_id */,
                               int /* route_id */,
                               bool /* url_mismatch */)