make unittest allocator align to 64 bytes.

source/planar_functions.cc

 /*
  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1726 matching lines @@
   }
   if (radius > (width / 2 - 1)) {
     radius = width / 2 - 1;
   }
   if (radius <= 0) {
     return -1;
   }
 #if defined(HAS_CUMULATIVESUMTOAVERAGEROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     ComputeCumulativeSumRow = ComputeCumulativeSumRow_SSE2;
-    if (IS_ALIGNED(dst_cumsum, 16)) {
-      CumulativeSumToAverageRow = CumulativeSumToAverageRow_SSE2;
-    }
+    CumulativeSumToAverageRow = CumulativeSumToAverageRow_SSE2;
   }
 #endif
   // Compute enough CumulativeSum for first row to be blurred. After this
   // one row of CumulativeSum is updated at a time.
   ARGBComputeCumulativeSum(src_argb, src_stride_argb,
                            dst_cumsum, dst_stride32_cumsum,
                            width, radius);
 
   src_argb = src_argb + radius * src_stride_argb;
   cumsum_bot_row = &dst_cumsum[(radius - 1) * dst_stride32_cumsum];
@@ skipping 904 matching lines @@
     }
     free_aligned_buffer_64(rows);
   }
   return 0;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif