free src_a in unittest to fix leak

unit_test/convert_test.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 1827 matching lines @@
   /* Convert B to C */                                                         \
   FMT_B##To##FMT_C(dst_argb_b + OFF, kStrideB,                                 \
                    dst_argb_bc + OFF, kStrideC,                                \
                    kWidth, kHeight);                                           \
   for (int i = 0; i < kStrideC * kHeight; ++i) {                               \
     EXPECT_EQ(dst_argb_c[i + OFF], dst_argb_bc[i + OFF]);                      \
   }                                                                            \
   free_aligned_buffer_64(src_y);                                               \
   free_aligned_buffer_64(src_u);                                               \
   free_aligned_buffer_64(src_v);                                               \
+  free_aligned_buffer_64(src_a);                                               \
   free_aligned_buffer_64(dst_argb_b);                                          \
   free_aligned_buffer_64(dst_argb_c);                                          \
   free_aligned_buffer_64(dst_argb_bc);                                         \
 }
 
 #define TESTQPLANARTOE(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,         \
                       FMT_C, BPP_C)                                            \
     TESTQPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,            \
         benchmark_width_ - 4, _Any, +, 0, FMT_C, BPP_C, 0)                     \
     TESTQPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,            \
         benchmark_width_, _Unaligned, +, 1, FMT_C, BPP_C, 0)                   \
     TESTQPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,            \
         benchmark_width_, _Invert, -, 0, FMT_C, BPP_C, 0)                      \
     TESTQPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,            \
         benchmark_width_, _Opt, +, 0, FMT_C, BPP_C, 0)                         \
       TESTQPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,          \
           benchmark_width_, _Premult, +, 0, FMT_C, BPP_C, 1)
 
 TESTQPLANARTOE(I420Alpha, 2, 2, ARGB, 4, ABGR, 4)
 TESTQPLANARTOE(I420Alpha, 2, 2, ABGR, 4, ARGB, 4)
 
 }  // namespace libyuv