The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/b8e944ce94c9f701befbf671575504b87a8a9b6e

commit b8e944ce94c9f701befbf671575504b87a8a9b6e
Author: Sharu Jiang <katesonia@google.com>
Date: Thu Dec 07 22:12:05 2017

[Predator] Disable TouchCrashedComponent and TouchCrashedDirectory for big regression range crashes.

Disable features for revisions > 100 commits.

    For crash with big regression range, it's easy to get false positives if we
    enable TouchCrashedComponentFeature and TouchCrashedDirectoryFeature.
    Because it has a big chance to hit these features and cause false positives.
    So we should disable these 2 features.

Bug:  790685 
Change-Id: I314b092f225b72a715f3d6730a3c63cda873fdde
Reviewed-on: https://chromium-review.googlesource.com/812456
Commit-Queue: Sharu Jiang <katesonia@chromium.org>
Reviewed-by: Roberto Carrillo <robertocn@chromium.org>

[modify] https://crrev.com/b8e944ce94c9f701befbf671575504b87a8a9b6e/appengine/predator/app/common/test/predator_for_clusterfuzz_test.py
[modify] https://crrev.com/b8e944ce94c9f701befbf671575504b87a8a9b6e/appengine/predator/app/common/predator_for_clusterfuzz.py
[modify] https://crrev.com/b8e944ce94c9f701befbf671575504b87a8a9b6e/appengine/predator/app/common/test/predator_app_test.py
[modify] https://crrev.com/b8e944ce94c9f701befbf671575504b87a8a9b6e/appengine/predator/app/common/predator_app.py
[modify] https://crrev.com/b8e944ce94c9f701befbf671575504b87a8a9b6e/appengine/predator/app/common/crash_pipeline.py