The serving_dirs usage in blink_perf is not trivial to remove. E.g. src/third_party/blink/perf_tests/canvas/drawimage.html requires serving src/third_party/blink/perf_tests/resources/ .

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/76ac6d9368131537b0b474819f440a3df3477e0d

commit 76ac6d9368131537b0b474819f440a3df3477e0d
Author: Kuo-Hsin Yang <vovoy@chromium.org>
Date: Fri Sep 14 08:26:26 2018

Remove serving_dirs usage in speedometer2

The serving dir is also included by the page.

Bug: chromium:883798
Change-Id: I1d1a512774b69312642b6226a80023ac88ff3293
Reviewed-on: https://chromium-review.googlesource.com/1226752
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Vovo Yang <vovoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#591301}
[modify] https://crrev.com/76ac6d9368131537b0b474819f440a3df3477e0d/tools/perf/benchmarks/speedometer2.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c04854f4ff7ec8ad30e5e98ca59dc1930ea6b817

commit c04854f4ff7ec8ad30e5e98ca59dc1930ea6b817
Author: Kuo-Hsin Yang <vovoy@chromium.org>
Date: Fri Sep 14 09:31:07 2018

Remove serving_dirs usage in static_top_25_pages

The serving dir is also included by the pages.

Bug: chromium:883798
Change-Id: Ifb67e19b03303e4929a0e588f5450707adec4835
Reviewed-on: https://chromium-review.googlesource.com/1226484
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Vovo Yang <vovoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#591312}
[modify] https://crrev.com/c04854f4ff7ec8ad30e5e98ca59dc1930ea6b817/tools/perf/page_sets/static_top_25_pages.py