All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=895270

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a90a784f9320e3c7e62de548b672be8da445ac5d65fcdd04aa57f19715350457


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

Win 7 Perf
mac-10_13_laptop_high_end-perf

system_health.memory_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14de34c6e40000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14de34c6e40000

Make non-root layout views have isolation nodes. by vmpstr@chromium.org
https://chromium.googlesource.com/chromium/src/+/a971ede805e09dbf5632a1c5366b92512fe8254a
memory:chrome:all_processes:reported_by_chrome:cc:effective_size: 7.285e+07 → 7.557e+07 (+2.715e+06)

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

Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/eeb3499ace08617926f1d0a7ece1c5f1ed677001

commit eeb3499ace08617926f1d0a7ece1c5f1ed677001
Author: Vladimir Levin <vmpstr@chromium.org>
Date: Tue Oct 16 17:49:24 2018

Disable iframe isolation nodes via a flag.

This patch introduces a flag for layout view isolation nodes, since
it seems to have caused a memory regression. The flag would allow to
easily test the memory usage and other perf benefits. I'll remove the
flag and enable by default when the problems are resolved.

R=chrishtr@chromium.org, pdr@chromium.org, wangxianzhu@chromium.org

Bug: 895270
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_slimming_paint_v2;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Iaa74c997dc3d211d0a870fdff303a9c94b5312e9
Reviewed-on: https://chromium-review.googlesource.com/c/1282204
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: vmpstr <vmpstr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600036}
[modify] https://crrev.com/eeb3499ace08617926f1d0a7ece1c5f1ed677001/third_party/blink/renderer/core/paint/paint_property_tree_builder.cc
[modify] https://crrev.com/eeb3499ace08617926f1d0a7ece1c5f1ed677001/third_party/blink/renderer/core/paint/paint_property_tree_builder_test.cc
[modify] https://crrev.com/eeb3499ace08617926f1d0a7ece1c5f1ed677001/third_party/blink/renderer/platform/runtime_enabled_features.json5