Android Chromoting: Handle keyboard-related system config changes.

Android Chromoting: Handle keyboard-related system config changes.

This prevents Bluetooth (and other external) keyboards from shutting
down the Desktop activity when activated or powered off.

BUG=471435
Committed: https://crrev.com/a357285fdc24b17ac991cddc6ec902cb5d626fde
Cr-Commit-Position: refs/heads/master@{#322696}

[Lambros, 2015-03-28 01:16:20]

lambroslambrou@chromium.org changed reviewers:
+ jamiewalch@chromium.org

[Jamie, 2015-03-28 01:19:10]

The CQ bit was checked by jamiewalch@chromium.org

[Jamie, 2015-03-28 01:19:10]

lgtm

[commit-bot: I haz the power, 2015-03-28 01:19:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1046503002/1

[commit-bot: I haz the power, 2015-03-28 01:52:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-28 01:53:29]

Patchset 1 (id:??) landed as
https://crrev.com/a357285fdc24b17ac991cddc6ec902cb5d626fde
Cr-Commit-Position: refs/heads/master@{#322696}