All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=800018

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=53b4b2bf61f939cb962d19da4261cb717468de79af865d441241b3d44fdafbec


Bot(s) for this bug's original alert(s):

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
win-high-dpi

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14bf7867040000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14bf7867040000

Add fieldtrial testing for DefaultPassthroughCommandDecoder.
By geofflang@chromium.org · Fri Jan 05 18:11:20 2018
chromium @ 408921af86e70591ea6f05722e49babb6711ef23

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/471d8d86874d2666ef7aa1ae563ba64aff15b6fb

commit 471d8d86874d2666ef7aa1ae563ba64aff15b6fb
Author: Geoff Lang <geofflang@chromium.org>
Date: Tue Jan 09 23:36:32 2018

Initialize the gpu_rasterization capability for the passthrough cmd decoder.

Remove double-initialization of flips_vertically.

BUG= 799797 
BUG= 799946 
BUG= 799982 
BUG= 800018 
BUG= 800083 
BUG= 800125 

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Idbbd54776b749f0a110ea8515ee61cfad85c3e91
Reviewed-on: https://chromium-review.googlesource.com/857595
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#528166}
[modify] https://crrev.com/471d8d86874d2666ef7aa1ae563ba64aff15b6fb/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc