commit dab363aef0eebf59ac71d4cc9fe88c87f3ba9584
author Jamie Madill <jmadill@chromium.org> Thu Mar 19 13:44:27 2020
committer Commit Bot <commit-bot@chromium.org> Thu Mar 19 13:44:27 2020
tree 488fca9a7e6b50b2be927aa2939772cf0d12e6ad
parent 2244b8e0b583b6297eaabfa34134cb9ae328e50e

Revert "[Blink Heap]: Marking uses jobs API."

This reverts commit 03474222003788e3e91053d1212a66580ff1218c.

Reason for revert: Suspected for failures in WebGL tests.
See issue for more details.

Bug: 1062940

Original change's description:
> [Blink Heap]: Marking uses jobs API.
> 
> Note: This CL enables feature BlinkHeapConcurrentMarking to get
> the desired behavior. However, we should land enabling
> BlinkHeapConcurrentMarking on its own first.
> 
> active_markers + GlobalPoolSize() is used to determine
> the desired number of workers.
> 
> NotifyConcurrencyIncrease() is called periodically from
> ConcurrentMarkingStep() if GlobalPoolSize() > 0,
> to make sure enough workers are scheduled.
> 
> CancelableTaskScheduler is no longer used and deleted in this CL.
> 
> Benchmark v8.browsing_desktop on win-10-perf browse:news:cnn:2018:
> blink-gc-atomic-pause-mark-transitive-closure: 13% improvement
> blink-gc-atomic-pause-sweep-and-compact: 5% improvement
> blink-gc-complete-sweep: 34% improvement
> blink-gc-total: 2% improvement
> https://pinpoint-dot-chromeperf.appspot.com/job/136a60ce620000
> 
> Bug: 1046343
> Change-Id: Ie2957abf200037ccacc017b1e38dc41f47811ee0
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2029609
> Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Kentaro Hara <haraken@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#751502}

TBR=haraken@chromium.org,mlippautz@chromium.org,etiennep@chromium.org,omerkatz@chromium.org

Change-Id: I14a613a4fb54de640505d384c53b89507d02b1c9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1046343
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2109970
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751668}