Add NaCl proxy for pepper gamepad

ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h

Index: ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h b/ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h
index bde42e8c54c46f7dbf1a33d6a226a4e19fa3734c..9d494f8d74db8cc10d3c86f61611f09e3173585e 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.h
@@ -487,6 +487,20 @@ class PpbFullscreenRpcServer {
   void operator=(const PpbFullscreenRpcServer);
 };  // class PpbFullscreenRpcServer
 
+class PpbGamepadRpcServer {
+ public:
+  static void PPB_Gamepad_SampleGamepads(
+      NaClSrpcRpc* rpc,
+      NaClSrpcClosure* done,
+      PP_Instance instance,
+      nacl_abi_size_t* data_bytes, char* data);
+
+ private:
+  PpbGamepadRpcServer();
+  PpbGamepadRpcServer(const PpbGamepadRpcServer&);
+  void operator=(const PpbGamepadRpcServer);
+};  // class PpbGamepadRpcServer
+
 class PpbGraphics2DRpcServer {
  public:
   static void PPB_Graphics2D_Create(