COMPMID-577: Implement CL validation for GaussianPyramid

Change-Id: If879cbe15b14d97818c24d44b29fc69b6c8cb686
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/127601
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLGaussianPyramid.h b/arm_compute/runtime/CL/functions/CLGaussianPyramid.h
index 9793519..0110adf 100644
--- a/arm_compute/runtime/CL/functions/CLGaussianPyramid.h
+++ b/arm_compute/runtime/CL/functions/CLGaussianPyramid.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -90,7 +90,8 @@
     void run() override;
 
 private:
-    std::unique_ptr<CLFillBorderKernel[]>          _border_handler;
+    std::unique_ptr<CLFillBorderKernel[]>          _horizontal_border_handler;
+    std::unique_ptr<CLFillBorderKernel[]>          _vertical_border_handler;
     std::unique_ptr<CLGaussianPyramidHorKernel[]>  _horizontal_reduction;
     std::unique_ptr<CLGaussianPyramidVertKernel[]> _vertical_reduction;
 };