Eirk: can you own/triage this bug?

Unexpected files with diffs:
  app_shell_unittests.isolated
  blink_heap_unittests.isolated
  chrome_app_unittests.isolated
  chromedriver_py_tests.isolated
  components_browsertests.isolated
  components_perftests.isolated
  components_unittests.isolated
  content_browsertests.isolated
  content_shell_crash_test.isolated
  content_unittests.isolated
  extensions_browsertests.isolated
  extensions_unittests.isolated
  gin_unittests.isolated
  headless_browsertests.isolated
  headless_unittests.isolated
  interactive_ui_tests.isolated
  media_blink_unittests.isolated
  performance_browser_tests.isolated
  performance_test_suite.isolated
  performance_webview_test_suite.isolated
  services_unittests.isolated
  sync_integration_tests.isolated
  telemetry_gpu_integration_test.isolated
  telemetry_perf_unittests.isolated
  telemetry_unittests.isolated
  unit_tests.isolated
  vr_common_perftests.isolated
  vr_common_unittests.isolated
  vr_pixeltests.isolated
  webkit_layout_tests.isolated
  webkit_layout_tests_exparchive.isolated
  webkit_unit_tests.isolated

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ab956a6f30edc80dd0641a8e55e6c1c725f515b5

commit ab956a6f30edc80dd0641a8e55e6c1c725f515b5
Author: erikchen <erikchen@chromium.org>
Date: Thu Aug 30 19:20:00 2018

Udpate deterministic build whitelist for Linux.

The script to compare deterministic builds was recently fixed to actually
generate .isolated files. Unfortunately, there are many .isolated files which
are not deterministic. This CL adds them to the whitelist.

Bug:  879249 
Change-Id: I4368e776baac80a66976e399b4eb0b94ed44b2ed
Reviewed-on: https://chromium-review.googlesource.com/1196866
Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
Commit-Queue: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#587697}
[modify] https://crrev.com/ab956a6f30edc80dd0641a8e55e6c1c725f515b5/tools/determinism/deterministic_build_whitelist.pyl