libvpx: Pull from upstream

source/libvpx/test/vp8_boolcoder_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 17 matching lines @@
 
 // In a real use the 'decrypt_state' parameter will be a pointer to a struct
 // with whatever internal state the decryptor uses. For testing we'll just
 // xor with a constant key, and decrypt_state will point to the start of
 // the original buffer.
 const uint8_t secret_key[16] = {
   0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78,
   0x89, 0x9a, 0xab, 0xbc, 0xcd, 0xde, 0xef, 0xf0
 };
 
-void encrypt_buffer(uint8_t *buffer, int size) {
-  for (int i = 0; i < size; ++i) {
+void encrypt_buffer(uint8_t *buffer, size_t size) {
+  for (size_t i = 0; i < size; ++i) {
     buffer[i] ^= secret_key[i & 15];
   }
 }
 
 void test_decrypt_cb(void *decrypt_state, const uint8_t *input,
-                           uint8_t *output, int count) {
+                     uint8_t *output, int count) {
   const size_t offset = input - reinterpret_cast<uint8_t*>(decrypt_state);
   for (int i = 0; i < count; i++) {
     output[i] = input[i] ^ secret_key[(offset + i) & 15];
   }
 }
 
 }  // namespace
 
 using libvpx_test::ACMRandom;
 
@@ skipping 55 matching lines @@
           }
           GTEST_ASSERT_EQ(vp8dx_decode_bool(&br, probas[i]), bit)
               << "pos: "<< i << " / " << kBitsToTest
               << " bit_method: " << bit_method
               << " method: " << method;
         }
       }
     }
   }
 }