Roll src/third_party/libvpx/source/libvpx/ f5bd76f5c..e66cd132f (23 commits).

third_party/libvpx/libvpx_srcs_arm_neon_cpu_detect.gypi

 # This file is generated. Do not edit.
 # Copyright (c) 2014 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.
 
 {
   'sources': [
     '<(libvpx_source)/vp8/common/alloccommon.c',
     '<(libvpx_source)/vp8/common/alloccommon.h',
     '<(libvpx_source)/vp8/common/arm/loopfilter_arm.c',
@@ skipping 169 matching lines @@
     '<(libvpx_source)/vp9/decoder/vp9_decodemv.c',
     '<(libvpx_source)/vp9/decoder/vp9_decodemv.h',
     '<(libvpx_source)/vp9/decoder/vp9_decoder.c',
     '<(libvpx_source)/vp9/decoder/vp9_decoder.h',
     '<(libvpx_source)/vp9/decoder/vp9_detokenize.c',
     '<(libvpx_source)/vp9/decoder/vp9_detokenize.h',
     '<(libvpx_source)/vp9/decoder/vp9_dsubexp.c',
     '<(libvpx_source)/vp9/decoder/vp9_dsubexp.h',
     '<(libvpx_source)/vp9/decoder/vp9_dthread.c',
     '<(libvpx_source)/vp9/decoder/vp9_dthread.h',
+    '<(libvpx_source)/vp9/encoder/vp9_alt_ref_aq.c',
+    '<(libvpx_source)/vp9/encoder/vp9_alt_ref_aq.h',
     '<(libvpx_source)/vp9/encoder/vp9_aq_360.c',
     '<(libvpx_source)/vp9/encoder/vp9_aq_360.h',
     '<(libvpx_source)/vp9/encoder/vp9_aq_complexity.c',
     '<(libvpx_source)/vp9/encoder/vp9_aq_complexity.h',
     '<(libvpx_source)/vp9/encoder/vp9_aq_cyclicrefresh.c',
     '<(libvpx_source)/vp9/encoder/vp9_aq_cyclicrefresh.h',
     '<(libvpx_source)/vp9/encoder/vp9_aq_variance.c',
     '<(libvpx_source)/vp9/encoder/vp9_aq_variance.h',
     '<(libvpx_source)/vp9/encoder/vp9_bitstream.c',
     '<(libvpx_source)/vp9/encoder/vp9_bitstream.h',
@@ skipping 130 matching lines @@
     '<(libvpx_source)/vpx_scale/generic/yv12config.c',
     '<(libvpx_source)/vpx_scale/generic/yv12extend.c',
     '<(libvpx_source)/vpx_scale/vpx_scale.h',
     '<(libvpx_source)/vpx_scale/vpx_scale_rtcd.c',
     '<(libvpx_source)/vpx_scale/yv12config.h',
     '<(libvpx_source)/vpx_util/endian_inl.h',
     '<(libvpx_source)/vpx_util/vpx_thread.c',
     '<(libvpx_source)/vpx_util/vpx_thread.h',
   ],
 }