commit e0e82c93404791efbe187bfa1f9a8e72335dbd80
author agrieve <agrieve@chromium.org> Sat Jan 12 03:22:40 2019
committer Commit Bot <commit-bot@chromium.org> Sat Jan 12 03:22:40 2019
tree dbc8eaefd11b479cfe41086c36b146d0462085e6
parent 239252ce1a3743d57782c4b90af2d1ee99b23f12

Revert "Android: Replace ConcurrentHashMap usage with Collections.synchronizedMap()"

This reverts commit b083d66bda71ca14e758550c9edb60ef236770b8.

Reason for revert: Realized forgot to synchronize iterators.

Original change's description:
> Android: Replace ConcurrentHashMap usage with Collections.synchronizedMap()
> 
> ConcurrentHashMap has a bug on L.
> Also adds a checkstyle check to prevent future uses.
> 
> Bug: 905903
> Change-Id: Ic6afed17b5d7d3c6a150935117fb33e0408955e4
> Reviewed-on: https://chromium-review.googlesource.com/c/1407493
> Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
> Commit-Queue: agrieve <agrieve@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#622143}

TBR=agrieve@chromium.org,tiborg@chromium.org

Change-Id: I64fa06d829df489fdf85249bc69331adc7df0031
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 905903
Reviewed-on: https://chromium-review.googlesource.com/c/1408029
Reviewed-by: agrieve <agrieve@chromium.org>
Commit-Queue: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622284}