Roll libvpx 247061:247814

Set excutable bits on python files:
https://codereview.chromium.org/130513006

Refactor obj_int_extract:
https://codereview.chromium.org/130563008

Roll libvpx, enable vp9 encoder, automatically disable avx2:
https://codereview.chromium.org/148913004

Remove defunct example binaries:
https://codereview.chromium.org/139903014

Fix OUTPUT_FMT usage in obj_int_extract:
https://codereview.chromium.org/144033005

Set flags for NEON intrinsic files:
https://codereview.chromium.org/148963005

Include correct NEON configuration files:
https://codereview.chromium.org/131103019

Fix copy_src.py:
https://codereview.chromium.org/133213007

Refactor dropped 'python' on action:
https://codereview.chromium.org/148123003

Disable vp9 encoder:
https://codereview.chromium.org/149883003

Cast away warning:
https://codereview.chromium.org/135183020

R=tomfinegan@chromium.org

Review URL: https://codereview.chromium.org/148173012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247839 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -34,7 +34,7 @@ vars = {
   "google_toolbox_for_mac_revision": "616",
   "libaddressinput_revision": "176",
   "libphonenumber_revision": "621",
-  "libvpx_revision": "247061",
+  "libvpx_revision": "247814",
   "lss_revision": "24",
 
   # These two FFmpeg variables must be updated together.  One is used for SVN