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

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Automatically adding ccs based on OWNERS file / target commit history.

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Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/a72257bad57d95dbc42dc00c8ebc588e2fd8586f (Initialize base::TestTimeouts in media_pipeline_integration_fuzzer.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

This is failing because of the initialization I added in https://chromium-review.googlesource.com/c/chromium/src/+/1403186 is getting run once per LLVMFuzzerTestOneInput() call, and there are multiple calls happening in the same process.

Adding an LLVMFuzzerInitialize() and placing the initializations there fixes things.

Posted fix at https://chromium-review.googlesource.com/c/chromium/src/+/1404563

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/773566053973b534e62c83981368c415afec49de

commit 773566053973b534e62c83981368c415afec49de
Author: Wez <wez@chromium.org>
Date: Thu Jan 10 19:32:47 2019

Use LLVMFuzzerInitialize() for media_pipeline_integration_fuzzer init.

LLVMFuzzerInitialize() is called once at process startup, so is a better
place to perform one-off initialization than in each call to
LLVMFuzzerTestOneInput().

Bug:  920461 
Change-Id: I420e3f10a0ac96b19695a714d4d29f889ed1f5b6
Reviewed-on: https://chromium-review.googlesource.com/c/1404563
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#621707}
[modify] https://crrev.com/773566053973b534e62c83981368c415afec49de/media/test/pipeline_integration_fuzzertest.cc

ClusterFuzz has detected this issue as fixed in range 621658:621725.

Detailed report: https://clusterfuzz.com/testcase?key=5128388746149888

Fuzzer: libFuzzer_mediasource_WEBM_VP8_pipeline_integration_fuzzer
Fuzz target binary: mediasource_WEBM_VP8_pipeline_integration_fuzzer
Job Type: x86_libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  !initialized_ in test_timeouts.cc
  TestTimeouts::Initialize
  pipeline_integration_fuzzertest.cc
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=x86_libfuzzer_chrome_asan_debug&range=621242:621262
Fixed: https://clusterfuzz.com/revisions?job=x86_libfuzzer_chrome_asan_debug&range=621658:621725

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5128388746149888

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5128388746149888 is verified as fixed, so closing issue as verified.

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

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5e6b36726e45714acadbe4a81272155ed06340d5

commit 5e6b36726e45714acadbe4a81272155ed06340d5
Author: Wez <wez@chromium.org>
Date: Mon Jan 14 18:20:44 2019

Don't pass LLVMFuzzerInitialize() args to CommandLine.

LLVMFuzzer seems to pass a bad argv, causing CommandLine switch lookup
to null-dereference in some cases.

Speculatively revert to initializing CommandLine with null argv & argc
to determine whether that is the source of the issue.

Bug: 920924,  920461 
Change-Id: Idf689c53be920b15ec6593a66cb5deb4d5708f69
Reviewed-on: https://chromium-review.googlesource.com/c/1408129
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622516}
[modify] https://crrev.com/5e6b36726e45714acadbe4a81272155ed06340d5/media/test/pipeline_integration_fuzzertest.cc