COMPMID-500: Move HarrisCorners to new validation

Change-Id: I4e21ad98d029e360010c5927f04b716527700a00
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88888
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/arm_compute/runtime/CL/CLArray.h b/arm_compute/runtime/CL/CLArray.h
index 3dc7f19..dda26e2 100644
--- a/arm_compute/runtime/CL/CLArray.h
+++ b/arm_compute/runtime/CL/CLArray.h
@@ -37,16 +37,23 @@
 class CLArray : public ICLArray<T>
 {
 public:
+    /** Default constructor: empty array */
+    CLArray()
+        : ICLArray<T>(0), _buffer()
+    {
+    }
     /** Prevent instances of this class from being copied (As this class contains pointers) */
     CLArray(const CLArray &) = delete;
     /** Prevent instances of this class from being copied (As this class contains pointers) */
-    const CLArray &operator=(const CLArray &) = delete;
+    CLArray &operator=(const CLArray &) = delete;
+    CLArray(CLArray &&)                 = default;
+    CLArray &operator=(CLArray &&) = default;
     /** Constructor: initializes an array which can contain up to max_num_points values
      *
      * @param[in] max_num_values Maximum number of values the array will be able to stored
      */
     CLArray(size_t max_num_values)
-        : ICLArray<T>(max_num_values), _buffer(cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, max_num_values * sizeof(T)))
+        : ICLArray<T>(max_num_values), _buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, max_num_values * sizeof(T))
     {
     }
     /** Enqueue a map operation of the allocated buffer.