Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Automatically adding ccs based on suspected regression changelists:

vp8: Fix to multi-res-encoder for skipping streams. by marpan@google.com - https://chromium.googlesource.com/webm/libvpx/+/9debbc2ec7e6ff004dba4d66d2780e216ca50b1a

Fix frame sizes in pkt to support spatial layers. by jianj@google.com - https://chromium.googlesource.com/webm/libvpx/+/2c2fea2c5bab1761de6ad36c93e030a395a3e77e

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

The following revision refers to this bug:
  https://chromium.googlesource.com/webm/libvpx/+/519fed01c2846ab9294543a3d2d65efaa51ec85b

commit 519fed01c2846ab9294543a3d2d65efaa51ec85b
Author: Jerome Jiang <jianj@google.com>
Date: Fri Feb 02 04:17:54 2018

Fix issue for 0 target bitrate in multi-res build.

For encoding with --enable-multi-res-encoding, with 1 layer, when the
target bitrate is set 0, under these conditions null pointer
will be de-referenced. Fix is to check
cpi->oxcf.mr_total_resolutions > 1. Also added NULL pointer check.
This issue causes crash for asan build in chromium clusterfuzz.

BUG= 805863 

Change-Id: I9cd25af631395bc9fede3a12fb68af4021eb15f8

[modify] https://crrev.com/519fed01c2846ab9294543a3d2d65efaa51ec85b/vp8/vp8_cx_iface.c

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c5e2fbe2519b5e8daa58d98f5623ff0f023cb46

commit 3c5e2fbe2519b5e8daa58d98f5623ff0f023cb46
Author: Marco <marpan@google.com>
Date: Fri Feb 02 21:12:36 2018

Roll src/third_party/libvpx/source/libvpx/ efa786d46..ac54d233b (5 commits)

https://chromium.googlesource.com/webm/libvpx.git/+log/efa786d4649c..ac54d233b6d7

$ git log efa786d46..ac54d233b --date=short --no-merges --format='%ad %ae %s'
2018-01-25 jianj Fix issue for 0 target bitrate in multi-res build.
2018-01-31 jzern vp9_scale_test: parameterize filter type
2018-01-31 marpan vp9-svc: Add condition on allocation for scaled_temp.
2018-01-31 marpan vp9-svc: Fix to initialize downsampling filters.
2018-01-15 paulwilkins Further change to code detecting slide transitions.

Created with:
  roll-dep src/third_party/libvpx/source/libvpx
R=johannkoenig@google.com

BUG= 805863 

Change-Id: Ieafbf459fa3230edf26ea742b7cc85fdfc88be11
Reviewed-on: https://chromium-review.googlesource.com/899605
Commit-Queue: Marco Paniconi <marpan@google.com>
Reviewed-by: Johann Koenig <johannkoenig@google.com>
Cr-Commit-Position: refs/heads/master@{#534151}
[modify] https://crrev.com/3c5e2fbe2519b5e8daa58d98f5623ff0f023cb46/DEPS
[modify] https://crrev.com/3c5e2fbe2519b5e8daa58d98f5623ff0f023cb46/third_party/libvpx/README.chromium
[modify] https://crrev.com/3c5e2fbe2519b5e8daa58d98f5623ff0f023cb46/third_party/libvpx/source/config/vpx_version.h