Move socket API restriction check to browser process

ppapi/proxy/ppb_tcp_socket_private_proxy.cc

Index: ppapi/proxy/ppb_tcp_socket_private_proxy.cc
diff --git a/ppapi/proxy/ppb_tcp_socket_private_proxy.cc b/ppapi/proxy/ppb_tcp_socket_private_proxy.cc
index 42420e36aa29004223c61eeda65a8bbda3368755..19f9b8e22c160d4afaa5f9ff885cb54d8c23e42d 100644
--- a/ppapi/proxy/ppb_tcp_socket_private_proxy.cc
+++ b/ppapi/proxy/ppb_tcp_socket_private_proxy.cc
@@ -57,12 +57,13 @@ TCPSocket::~TCPSocket() {
 }
 
 void TCPSocket::SendConnect(const std::string& host, uint16_t port) {
-  SendToBrowser(new PpapiHostMsg_PPBTCPSocket_Connect(socket_id_, host, port));
+  SendToBrowser(new PpapiHostMsg_PPBTCPSocket_Connect(
+      API_ID_PPB_TCPSOCKET_PRIVATE, socket_id_, host, port));
 }
 
 void TCPSocket::SendConnectWithNetAddress(const PP_NetAddress_Private& addr) {
-  SendToBrowser(
-      new PpapiHostMsg_PPBTCPSocket_ConnectWithNetAddress(socket_id_, addr));
+  SendToBrowser(new PpapiHostMsg_PPBTCPSocket_ConnectWithNetAddress(
+      API_ID_PPB_TCPSOCKET_PRIVATE, socket_id_, addr));
 }
 
 void TCPSocket::SendSSLHandshake(const std::string& server_name,