Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_messaging_rpc_server.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_messaging_rpc_server.cc
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_messaging_rpc_server.cc	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_messaging_rpc_server.cc	(revision 0)
@@ -0,0 +1,38 @@
+// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "native_client/src/shared/ppapi_proxy/browser_globals.h"
+#include "native_client/src/shared/ppapi_proxy/object_serialize.h"
+#include "native_client/src/shared/ppapi_proxy/utility.h"
+#include "srpcgen/ppb_rpc.h"
+
+// This is here due to a Windows API collision.
+#ifdef PostMessage
+#undef PostMessage
+#endif
+
+using ppapi_proxy::PPBMessagingInterface;
+using ppapi_proxy::DebugPrintf;
+using ppapi_proxy::DeserializeTo;
+
+void PpbMessagingRpcServer::PPB_Messaging_PostMessage(
+    NaClSrpcRpc* rpc,
+    NaClSrpcClosure* done,
+    PP_Instance instance,
+    nacl_abi_size_t message_size,
+    char* message_bytes) {
+  NaClSrpcClosureRunner runner(done);
+  rpc->result = NACL_SRPC_RESULT_APP_ERROR;
+
+  PP_Var message;
+  if (!DeserializeTo(rpc->channel, message_bytes, message_size, 1, &message))
+    return;
+
+  PPBMessagingInterface()->PostMessage(instance, message);
+  DebugPrintf("PPB_Messaging::PostMessage: instance=%"NACL_PRIu32"\n",
+              instance);
+
+  rpc->result = NACL_SRPC_RESULT_OK;
+}
+