libvpx: Pull from upstream

source/libvpx/configure

Index: source/libvpx/configure
===================================================================
--- source/libvpx/configure	(revision 278778)
+++ source/libvpx/configure	(working copy)
@@ -52,6 +52,7 @@
   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
   ${toggle_webm_io}               enable input from and output to WebM container
+  ${toggle_libyuv}                enable libyuv
 
 Codecs:
   Codecs can be selectively enabled or disabled individually, or by family:
@@ -102,6 +103,7 @@
 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 all_platforms="${all_platforms} armv7-win32-vs11"
 all_platforms="${all_platforms} armv7-win32-vs12"
+all_platforms="${all_platforms} armv7s-darwin-gcc"
 all_platforms="${all_platforms} mips32-linux-gcc"
 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 all_platforms="${all_platforms} ppc32-darwin9-gcc"
@@ -119,6 +121,7 @@
 all_platforms="${all_platforms} x86-darwin11-gcc"
 all_platforms="${all_platforms} x86-darwin12-gcc"
 all_platforms="${all_platforms} x86-darwin13-gcc"
+all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 all_platforms="${all_platforms} x86-linux-gcc"
 all_platforms="${all_platforms} x86-linux-icc"
 all_platforms="${all_platforms} x86-os2-gcc"
@@ -135,6 +138,7 @@
 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 all_platforms="${all_platforms} x86_64-darwin13-gcc"
+all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 all_platforms="${all_platforms} x86_64-linux-gcc"
 all_platforms="${all_platforms} x86_64-linux-icc"
 all_platforms="${all_platforms} x86_64-solaris-gcc"
@@ -265,8 +269,10 @@
     unistd_h
 "
 EXPERIMENT_LIST="
+    alpha
     multiple_arf
-    alpha
+    spatial_svc
+    denoising
 "
 CONFIG_LIST="
     external_build
@@ -314,6 +320,7 @@
     os_support
     unit_tests
     webm_io
+    libyuv
     decode_perf_tests
     multi_res_encoding
     temporal_denoising
@@ -367,6 +374,7 @@
     postproc_visualizer
     unit_tests
     webm_io
+    libyuv
     decode_perf_tests
     multi_res_encoding
     temporal_denoising
@@ -708,15 +716,21 @@
         *-vs*)
             soft_enable unit_tests
             soft_enable webm_io
+            soft_enable libyuv
         ;;
         *-android-*)
             soft_enable webm_io
+            soft_enable libyuv
             # GTestLog must be modified to use Android logging utilities.
         ;;
         *-darwin-*)
             # iOS/ARM builds do not work with gtest. This does not match
             # x86 targets.
         ;;
+        *-iphonesimulator-*)
+            soft_enable webm_io
+            soft_enable libyuv
+        ;;
         *-win*)
             # Some mingw toolchains don't have pthread available by default.
             # Treat these more like visual studio where threading in gtest
@@ -727,6 +741,9 @@
             check_cxx "$@" <<EOF && soft_enable webm_io
 int z;
 EOF
+            check_cxx "$@" <<EOF && soft_enable libyuv
+int z;
+EOF
         ;;
         *)
             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
@@ -735,6 +752,9 @@
             check_cxx "$@" <<EOF && soft_enable webm_io
 int z;
 EOF
+            check_cxx "$@" <<EOF && soft_enable libyuv
+int z;
+EOF
         ;;
     esac
     # libwebm needs to be linked with C++ standard library