Settings: About: Fix restart and powerwash button visibility

Settings: About: Fix restart and powerwash button visibility

Currently if |currentChannel_| changes after |targetChannel_|
computeShowRelaunchAndPowerwash_() will not get called and the
button visibility may be incorrect. Instead of fixing the
computeShowRelaunchAndPowerwash_() params, update visibity for
both in updateShowRelaunch_() so that they stay in sync.

BUG=724518
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2916383002
Cr-Original-Commit-Position: refs/heads/master@{#476867}
Review-Url: https://codereview.chromium.org/2923003002 .
Cr-Commit-Position: refs/branch-heads/3112@{#156}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/a25746de2eb3e28e64aedd114f78902d084b0474

[stevenjb, 2017-06-05 17:26:33]

Description was changed from

==========
Settings: About: Fix restart and powerwash button visibility

Currently if |currentChannel_| changes after |targetChannel_|
computeShowRelaunchAndPowerwash_() will not get called and the
button visibility may be incorrect. Instead of fixing the
computeShowRelaunchAndPowerwash_() params, update visibity for
both in updateShowRelaunch_() so that they stay in sync.

BUG=724518
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2916383002
Cr-Commit-Position: refs/heads/master@{#476867}
(cherry picked from commit 038795765171270a268fde65453f5af66d914061)
==========

to

==========
Settings: About: Fix restart and powerwash button visibility

Currently if |currentChannel_| changes after |targetChannel_|
computeShowRelaunchAndPowerwash_() will not get called and the
button visibility may be incorrect. Instead of fixing the
computeShowRelaunchAndPowerwash_() params, update visibity for
both in updateShowRelaunch_() so that they stay in sync.

BUG=724518
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2916383002
Cr-Original-Commit-Position: refs/heads/master@{#476867}
Review-Url: https://codereview.chromium.org/2923003002 .
Cr-Commit-Position: refs/branch-heads/3112@{#156}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/a25746de2eb3e28e64aedd114f78...
==========

[stevenjb, 2017-06-05 17:26:35]

Committed patchset #1 (id:1) manually as
a25746de2eb3e28e64aedd114f78902d084b0474.