Add NaCl proxy for pepper gamepad

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

Index: ppapi/native_client/src/shared/ppapi_proxy/untrusted/srpcgen/ppb_rpc.h
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/untrusted/srpcgen/ppb_rpc.h b/ppapi/native_client/src/shared/ppapi_proxy/untrusted/srpcgen/ppb_rpc.h
index a209ecb9d5ce2aede36d6239c5a299cd18360149..b210e58af6bf83401aaf485d8e3f96667a0ddcf5 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/untrusted/srpcgen/ppb_rpc.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/untrusted/srpcgen/ppb_rpc.h
@@ -427,6 +427,19 @@ class PpbFullscreenRpcClient {
   void operator=(const PpbFullscreenRpcClient);
 };  // class PpbFullscreenRpcClient
 
+class PpbGamepadRpcClient {
+ public:
+  static NaClSrpcError PPB_Gamepad_SampleGamepads(
+      NaClSrpcChannel* channel,
+      PP_Instance instance,
+      nacl_abi_size_t* data_bytes, char* data);
+
+ private:
+  PpbGamepadRpcClient();
+  PpbGamepadRpcClient(const PpbGamepadRpcClient&);
+  void operator=(const PpbGamepadRpcClient);
+};  // class PpbGamepadRpcClient
+
 class PpbGraphics2DRpcClient {
  public:
   static NaClSrpcError PPB_Graphics2D_Create(