libwebp: update to v0.5.1

third_party/libwebp/libwebp.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'target_defaults': {
     'conditions': [
       ['os_posix==1 and (target_arch=="arm" or target_arch=="arm64")', {
         'cflags!': [ '-Os' ],
         'cflags': [ '-O2' ],
@@ skipping 44 matching lines @@
         'dsp/argb.c',
         'dsp/argb_mips_dsp_r2.c',
         'dsp/cost.c',
         'dsp/cost_mips32.c',
         'dsp/cost_mips_dsp_r2.c',
         'dsp/cpu.c',
         'dsp/dec.c',
         'dsp/dec_clip_tables.c',
         'dsp/dec_mips32.c',
         'dsp/dec_mips_dsp_r2.c',
+        'dsp/dec_msa.c',
         'dsp/enc.c',
         'dsp/enc_avx2.c',
         'dsp/enc_mips32.c',
         'dsp/enc_mips_dsp_r2.c',
         'dsp/filters.c',
         'dsp/filters_mips_dsp_r2.c',
         'dsp/lossless.c',
         'dsp/lossless_enc.c',
         'dsp/lossless_enc_mips32.c',
         'dsp/lossless_enc_mips_dsp_r2.c',
@@ skipping 186 matching lines @@
       ],
       'direct_dependent_settings': {
         'include_dirs': ['.'],
       },
       'conditions': [
         ['OS!="win"', {'product_name': 'webp'}],
       ],
     },
   ],
 }