SharedWorker: Remove message forwarding mechanism

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 9c7c90abb22c2dd86abcd750000c19291588bd9a..15f27d51c3f1eddef682695bd1d92a3058ce1c5a 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -715,10 +715,11 @@ IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_CreateWorker,
 // is detached).
 IPC_MESSAGE_CONTROL1(ViewHostMsg_DocumentDetached, uint64_t /* document_id */)
 
-// Wraps an IPC message that's destined to the worker on the renderer->browser
-// hop.
-IPC_MESSAGE_CONTROL1(ViewHostMsg_ForwardToWorker,
-                     IPC::Message /* message */)
+// A renderer sends this to the browser process when it wants to connect to a
+// worker.
+IPC_MESSAGE_CONTROL2(ViewHostMsg_ConnectToWorker,
+                     int /* route_id */,
+                     int /* sent_message_port_id */)
 
 // Tells the browser that a specific Appcache manifest in the current page
 // was accessed.