Refactor the P2PSocketDispatcher to be created on the RenderThread instead of the RenderView.

content/browser/renderer_host/p2p/socket_host.cc

Index: content/browser/renderer_host/p2p/socket_host.cc
diff --git a/content/browser/renderer_host/p2p/socket_host.cc b/content/browser/renderer_host/p2p/socket_host.cc
index f17ae9e46de14dc3618d4072f1804c288c54dbc9..40d173a9518c28dee43987f6deaa47c79a11ee0d 100644
--- a/content/browser/renderer_host/p2p/socket_host.cc
+++ b/content/browser/renderer_host/p2p/socket_host.cc
@@ -16,10 +16,8 @@ const uint32 kStunMagicCookie = 0x2112A442;
 
 namespace content {
 
-P2PSocketHost::P2PSocketHost(IPC::Sender* message_sender,
-                             int routing_id, int id)
+P2PSocketHost::P2PSocketHost(IPC::Sender* message_sender, int id)
     : message_sender_(message_sender),
-      routing_id_(routing_id),
       id_(id),
       state_(STATE_UNINITIALIZED) {
 }
@@ -75,17 +73,16 @@ bool P2PSocketHost::IsRequestOrResponse(StunMessageType type) {
 
 // static
 P2PSocketHost* P2PSocketHost::Create(
-    IPC::Sender* message_sender, int routing_id, int id,
-    P2PSocketType type) {
+    IPC::Sender* message_sender, int id, P2PSocketType type) {
   switch (type) {
     case P2P_SOCKET_UDP:
-      return new P2PSocketHostUdp(message_sender, routing_id, id);
+      return new P2PSocketHostUdp(message_sender, id);
 
     case P2P_SOCKET_TCP_SERVER:
-      return new P2PSocketHostTcpServer(message_sender, routing_id, id);
+      return new P2PSocketHostTcpServer(message_sender, id);
 
     case P2P_SOCKET_TCP_CLIENT:
-      return new P2PSocketHostTcp(message_sender, routing_id, id);
+      return new P2PSocketHostTcp(message_sender, id);
   }
 
   NOTREACHED();