libwebp: update to 0.5.0

third_party/libwebp/dsp/dec_clip_tables.c

 // Copyright 2014 Google Inc. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the COPYING 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.
 // -----------------------------------------------------------------------------
 //
 // Clipping tables for filtering
@@ skipping 326 matching lines @@
 // and make sure it's set to true _last_ (so as to be thread-safe)
 static volatile int tables_ok = 0;
 
 #endif
 
 const int8_t* const VP8ksclip1 = &sclip1[1020];
 const int8_t* const VP8ksclip2 = &sclip2[112];
 const uint8_t* const VP8kclip1 = &clip1[255];
 const uint8_t* const VP8kabs0 = &abs0[255];
 
-void VP8InitClipTables(void) {
+WEBP_TSAN_IGNORE_FUNCTION void VP8InitClipTables(void) {
 #if !defined(USE_STATIC_TABLES)
   int i;
   if (!tables_ok) {
     for (i = -255; i <= 255; ++i) {
       abs0[255 + i] = (i < 0) ? -i : i;
     }
     for (i = -1020; i <= 1020; ++i) {
       sclip1[1020 + i] = (i < -128) ? -128 : (i > 127) ? 127 : i;
     }
     for (i = -112; i <= 112; ++i) {
       sclip2[112 + i] = (i < -16) ? -16 : (i > 15) ? 15 : i;
     }
     for (i = -255; i <= 255 + 255; ++i) {
       clip1[255 + i] = (i < 0) ? 0 : (i > 255) ? 255 : i;
     }
     tables_ok = 1;
   }
 #endif    // USE_STATIC_TABLES
 }