The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4e1e8774f3b147906917dbd4e50f30bfc7372ba6

commit 4e1e8774f3b147906917dbd4e50f30bfc7372ba6
Author: khmel <khmel@chromium.org>
Date: Tue Nov 22 21:13:33 2016

arc: Fix duplicate icons in app launcher in case of crash.

This CL initializes tracking items by existing app set on start in
order to prevent race condition that leads to arc app created is
called twice for some apps.

TBR=xiyuan@chromium.org

TEST=Extended unit_tests
TEST=Manually on device with chrome://inducebrowsercrashforrealz
BUG=b/32765086
BUG= 667529 

Review-Url: https://codereview.chromium.org/2520173002
Cr-Commit-Position: refs/heads/master@{#433980}

[modify] https://crrev.com/4e1e8774f3b147906917dbd4e50f30bfc7372ba6/chrome/browser/ui/app_list/arc/arc_app_list_prefs.cc
[modify] https://crrev.com/4e1e8774f3b147906917dbd4e50f30bfc7372ba6/chrome/browser/ui/app_list/arc/arc_app_test.cc
[modify] https://crrev.com/4e1e8774f3b147906917dbd4e50f30bfc7372ba6/chrome/browser/ui/app_list/arc/arc_app_test.h
[modify] https://crrev.com/4e1e8774f3b147906917dbd4e50f30bfc7372ba6/chrome/browser/ui/app_list/arc/arc_app_unittest.cc

[Automated comment] There appears to be on-going work (i.e. bugroid changes), needs manual review.

CL http://crrev.com/2545533002 is ready for merge (tested locally on device).

Bernie, could you please confirm the merge request?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/107cb37d3dd8af5acfb2c7f024b8b98bb80804da

commit 107cb37d3dd8af5acfb2c7f024b8b98bb80804da
Author: khmel <khmel@chromium.org>
Date: Wed Nov 30 19:20:05 2016

[Merge-M56] arc: Fix duplicate icons in app launcher in case of crash.

This CL initializes tracking items by existing app set on start in
order to prevent race condition that leads to arc app created is
called twice for some apps.

TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

TEST=Extended unit_tests
TEST=Manually on device with chrome://inducebrowsercrashforrealz
BUG=b/32765086
BUG= 667529 

Review-Url: https://codereview.chromium.org/2520173002
Cr-Commit-Position: refs/heads/master@{#433980}
(cherry picked from commit 4e1e8774f3b147906917dbd4e50f30bfc7372ba6)

Review-Url: https://codereview.chromium.org/2545533002
Cr-Commit-Position: refs/branch-heads/2924@{#202}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}

[modify] https://crrev.com/107cb37d3dd8af5acfb2c7f024b8b98bb80804da/chrome/browser/ui/app_list/arc/arc_app_list_prefs.cc
[modify] https://crrev.com/107cb37d3dd8af5acfb2c7f024b8b98bb80804da/chrome/browser/ui/app_list/arc/arc_app_test.cc
[modify] https://crrev.com/107cb37d3dd8af5acfb2c7f024b8b98bb80804da/chrome/browser/ui/app_list/arc/arc_app_test.h
[modify] https://crrev.com/107cb37d3dd8af5acfb2c7f024b8b98bb80804da/chrome/browser/ui/app_list/arc/arc_app_unittest.cc

Verified on ChromeOS 9000.18.0, 56.0.2924.17