Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/7d9f5804e4cc4bb6cc55133137a6e2060aa106b7 (roll clang 255169:257953).

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

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Using (ubsan) media_pipeline_integration_fuzzer, I have a local repro on ToT Chromium.
I also have a local repro on upstream ffplay in rodete (configure --toolchain=clang-usan).  Specific UBSAN options (see the report, minus suppressions and symbolization options) are helpful to obtain the stack trace.

I've sent the case upstream to Michael today.

With my review, Michael landed his fix upstream last Thursday:

https://github.com/FFmpeg/FFmpeg/commit/010b7b30b721b90993e05e9ee6338e88bb8debb3

It'll get pulled into the M67 ffmpeg roll (no cherry-pick should be needed for M67).

A related patch that was found during my review of the upstream fix in #6  landed with my review last Friday:

https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/3e7c847aaf5a298b62afae12b4ecfb8e12385998

It'll also get pulled into the M67 ffmpeg roll (no cherry-pick should be needed for M67).

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720

commit 3a1d00c3ef1de6fcc959696e2a1ff11f901e4720
Author: Matt Wolenetz <wolenetz@chromium.org>
Date: Thu Mar 15 22:54:10 2018

Roll src/third_party/ffmpeg/ 4468d4967..02ec9ce5a (389 commits)

https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+log/4468d4967f5d..02ec9ce5a9bc

$ git log 4468d4967..02ec9ce5a --date=short --no-merges --format='%ad %ae %s'
2018-03-13 wolenetz Updating build configs for M67 roll.
2018-03-13 wolenetz Update build_ffmpeg.py's sysroot name for M67
2018-03-13 wolenetz Remove deprecated av_register_all from ffmpeg.sigs
2018-03-13 wolenetz Copy [de]muxer, codec and parser lists into configs
2018-03-12 wolenetz Update chromium patches README
2018-03-12 vdixit avformat/hlsenc: fix for zero EXTINF tag duration
2018-03-12 matthieu.bouron avcodec/mediacodecdec_common: make INFO_TRY_AGAIN trace messages more consistent
2018-03-10 aman avcodec/mediacodecdec: add debug logging around hw buffer lifecycle
2018-02-27 michael avcodec/nuv: rtjpeg with dimensions less than 16 would result in no decoded pixels thus reject it
2018-02-27 michael avcodec/nuv: Check for minimum input size for uncomprssed and rtjpeg
(...)

Created with:
  roll-dep src/third_party/ffmpeg

Includes removal of FFmpegGlue::InitializeFFmpeg() because
av_register_all is no longer needed (and is deprecated in FFmpeg).

BUG= 803898 ,  772699 ,  786793 ,  791237 ,  791349 ,  795653 ,  796778 ,  800123 ,  817338 

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I94ccecab95831174a3bae6e9a8422e10bfec8e85
Reviewed-on: https://chromium-review.googlesource.com/964248
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Xiaohan Wang <xhwang@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Matthew Wolenetz <wolenetz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543531}
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/DEPS
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/content/renderer/media/webrtc/peer_connection_dependency_factory.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/cdm/library_cdm/clear_key_cdm/clear_key_cdm.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/ffmpeg/ffmpeg_common_unittest.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/filters/ffmpeg_audio_decoder.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/filters/ffmpeg_glue.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/filters/ffmpeg_glue.h
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/filters/ffmpeg_video_decoder.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/filters/ffmpeg_video_decoder_unittest.cc
[modify] https://crrev.com/3a1d00c3ef1de6fcc959696e2a1ff11f901e4720/media/gpu/video_encode_accelerator_unittest.cc

ClusterFuzz testcase 6554425197068288 is flaky and no longer crashes, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.