libvpx: Pull from upstream

source/libvpx/configure

 #!/bin/sh
 ##
 ##  configure
 ##
 ##  This script is the front-end to the build system. It provides a similar
 ##  interface to standard configure scripts with some extra bits for dealing
 ##  with toolchains that differ from the standard POSIX interface and
 ##  for extracting subsets of the source tree. In theory, reusable parts
 ##  of this script were intended to live in build/make/configure.sh,
 ##  but in practice, the line is pretty blurry.
 ##
 ##  This build system is based in part on the FFmpeg configure script.
 ##
 
 #source_path="`dirname \"$0\"`"
 source_path=${0%/*}
 . "${source_path}/build/make/configure.sh"
 
 show_help(){
     show_help_pre
     cat << EOF
 Advanced options:
   ${toggle_libs}                  libraries
   ${toggle_examples}              examples
   ${toggle_docs}                  documentation
   ${toggle_unit_tests}            unit tests
   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
   --libc=PATH                     path to alternate libc
+  --size-limit=WxH                max size to allow in the decoder
   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
   --sdk-path=PATH                 path to root of sdk (android builds only)
   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
                                   supported by hardware [auto]
   ${toggle_codec_srcs}            in/exclude codec library source code
   ${toggle_debug_libs}            in/exclude debug version of libraries
   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
   ${toggle_vp8}                   VP8 codec support
   ${toggle_vp9}                   VP9 codec support
   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
@@ skipping 281 matching lines @@
     small
     postproc_visualizer
     os_support
     unit_tests
     webm_io
     libyuv
     decode_perf_tests
     multi_res_encoding
     temporal_denoising
     experimental
+    size_limit
     ${EXPERIMENT_LIST}
 "
 CMDLINE_SELECT="
     external_build
     extra_warnings
     werror
     install_docs
     install_bins
     install_libs
     install_srcs
     debug
     gprof
     gcov
     pic
     use_x86inc
     optimizations
     ccache
     runtime_cpu_detect
     thumb
 
     libs
     examples
     docs
     libc
     as
+    size_limit
     fast_unaligned
     codec_srcs
     debug_libs
 
     dequant_tokens
     dc_recon
     postproc
     vp9_postproc
     multithread
     internal_stats
@@ skipping 402 matching lines @@
 ##
 ## END APPLICATION SPECIFIC CONFIGURATION
 ##
 CONFIGURE_ARGS="$@"
 process "$@"
 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 static const char* const cfg = "$CONFIGURE_ARGS";
 const char *vpx_codec_build_config(void) {return cfg;}
 EOF