The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5eeb08e6e66904d0ee2c96887f98caf8168f73d6

commit 5eeb08e6e66904d0ee2c96887f98caf8168f73d6
Author: Juan A. Navarro Perez <perezju@chromium.org>
Date: Fri May 26 13:46:45 2017

[tools/perf] Clean up some memory benchmarks

Remove system_health.webview_startup_multiprocess (no longer needed),
and move memory.dual_browser_test to contrib.

Also fix a bug where the story set for system_health.webview_startup
was not working correctly.

Bug: 724519, 720257 , 726639 
Change-Id: I042aa62ac36e91b6182fc00f6587aad62b935eff
Reviewed-on: https://chromium-review.googlesource.com/514044
Commit-Queue: Juan Antonio Navarro Pérez <perezju@chromium.org>
Reviewed-by: Selim Gurun <sgurun@chromium.org>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Cr-Commit-Position: refs/heads/master@{#474998}
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/testing/buildbot/chromium.perf.fyi.json
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/testing/buildbot/chromium.perf.json
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/benchmark.csv
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/benchmarks/memory.py
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/benchmarks/system_health.py
[rename] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/contrib/memory_extras/OWNERS
[rename] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/contrib/memory_extras/__init__.py
[add] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/contrib/memory_extras/memory_extras.py
[delete] https://crrev.com/4c06455469d2cd7b0549eca68c700406c18ee7a7/tools/perf/contrib/memory_long_running/memory_long_running.py
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/page_sets/system_health/system_health_stories.py
[modify] https://crrev.com/5eeb08e6e66904d0ee2c96887f98caf8168f73d6/tools/perf/unowned_benchmarks.txt