libvpx: Pull from upstream

source/libvpx/test/subtract_test.cc

 /*
  *  Copyright (c) 2012 The WebM 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 41 matching lines @@
   for (int i = 0; kSrcStride[i] > 0; ++i) {
     // start at block0
     be.src = 0;
     be.base_src = &source;
     be.src_stride = kSrcStride[i];
 
     // set difference
     int16_t *src_diff = be.src_diff;
     for (int r = 0; r < kBlockHeight; ++r) {
       for (int c = 0; c < kBlockWidth; ++c) {
-        src_diff[c] = static_cast<int16_t>(0xa5a5);
+        src_diff[c] = static_cast<int16_t>(0xa5a5u);
       }
       src_diff += kDiffPredStride;
     }
 
     // set destination
     uint8_t *base_src = *be.base_src;
     for (int r = 0; r < kBlockHeight; ++r) {
       for (int c = 0; c < kBlockWidth; ++c) {
         base_src[c] = rnd.Rand8();
       }
@@ skipping 36 matching lines @@
 INSTANTIATE_TEST_CASE_P(MMX, SubtractBlockTest,
                         ::testing::Values(vp8_subtract_b_mmx));
 #endif
 
 #if HAVE_SSE2
 INSTANTIATE_TEST_CASE_P(SSE2, SubtractBlockTest,
                         ::testing::Values(vp8_subtract_b_sse2));
 #endif
 
 }  // namespace