Add NaCl proxy for pepper gamepad

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

Index: ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_gamepad_rpc_server.cc
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_gamepad_rpc_server.cc b/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_gamepad_rpc_server.cc
new file mode 100644
index 0000000000000000000000000000000000000000..313e83db50c362bfc49be97465a7d7386d614c31
--- /dev/null
+++ b/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_gamepad_rpc_server.cc
@@ -0,0 +1,33 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// SRPC-abstraction wrappers around PPB_Gamepad functions.
+
+#include "native_client/src/shared/ppapi_proxy/browser_globals.h"
+#include "native_client/src/shared/ppapi_proxy/utility.h"
+#include "ppapi/c/dev/ppb_gamepad_dev.h"
+#include "srpcgen/ppb_rpc.h"
+
+using ppapi_proxy::DebugPrintf;
+using ppapi_proxy::PPBGamepadInterface;
+
+void PpbGamepadRpcServer::PPB_Gamepad_SampleGamepads(
+      NaClSrpcRpc* rpc,
+      NaClSrpcClosure* done,
+      // inputs
+      PP_Instance instance,
+      // outputs
+      nacl_abi_size_t* pads_bytes, char* pads) {
+  NaClSrpcClosureRunner runner(done);
+  rpc->result = NACL_SRPC_RESULT_APP_ERROR;
+  if (*pads_bytes != sizeof(struct PP_GamepadsData_Dev))
+    return;
+
+  PPBGamepadInterface()->SampleGamepads(
+      instance,
+      reinterpret_cast<struct PP_GamepadsData_Dev*>(pads));
+  DebugPrintf("PPB_Gamepad::SampleGamepads\n");
+
+  rpc->result = NACL_SRPC_RESULT_OK;
+}