Reland "Remove --isolated-script-test-perf-output from chromium recipe."

This is a reland of 98cb0022b0e4f2c6b05a23b31bfe532ed9924885.

It turned out that the arg was used way in at least one place.
That usage was removed in https://crrev.com/c/2429866, so let's
try to land this again and see what happens.

Original change's description:
> Remove --isolated-script-test-perf-output from chromium recipe.
>
> As discovered/discussed in crbug.com/1127545, it appears that this
> flag is not actually ever used anywhere in the chromium recipes.
>
> Perf tests *do* produce output, but they don't use this flag to
> do so.
>
> WebRTC tests *do* use this flag, but they set this directly in their
> own recipes.
>
> Bug: 1127545
> Change-Id: I215ad8f698c18e41ca2a87c7043371a9ac73000b
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/build/+/2427305
> Reviewed-by: Stephen Martinis <martiniss@chromium.org>
> Commit-Queue: Dirk Pranke <dpranke@google.com>

TBR=martiniss@chromium.org
Bug: 1127545
Change-Id: I57743d353893d310adafe88df7c0fcc7858c9048
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/build/+/2431697
Reviewed-by: Dirk Pranke <dpranke@google.com>
Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@google.com>
67 files changed
tree: 37286f4a7a2e8c8e77bd5456601f999af1bcaecd
  1. infra/
  2. recipes/
  3. scripts/
  4. site_config/
  5. third_party/
  6. .gitattributes
  7. .gitignore
  8. .style.yapf
  9. .vpython
  10. .yapfignore
  11. codereview.settings
  12. CROS_OWNERS
  13. DEPS
  14. environment.cfg.py
  15. LICENSE
  16. OWNERS
  17. PRESUBMIT.py
  18. README.md
  19. WATCHLISTS
README.md

Recipes

If you're here to make a change to ‘recipes’ (the code located in scripts/slave/recipes*), please take a look at the README for more information pertaining to recipes.

Style

The preferred style is PEP8 with two-space indent; that is, the Chromium Python style. Functions use lowercase_with_underscores, with the exception of the special functions RunSteps and RunTests in recipes. Use yapf (git cl format --no-clang-format) to autoformat new code.