Merge Disable Keyboard in Maximize Mode

Merge Disable Keyboard in Maximize Mode
Disable Keyboard in Maximize Mode

Update logic for disabling keyboards on X11 when Maximize Mode is activated.

TBR=sadrul@chromium.org, skuhne@chromium.org
NOTRY=true
TEST=Manual testing on device
BUG=chrome-os-partner:37106
Review URL: https://codereview.chromium.org/991933002

Cr-Commit-Position: refs/heads/master@{#319672}
(cherry picked from commit d50b6df7a1454fb3a3fa485f0c2690be902e32a3)

[jonross, 2015-03-19 14:20:31]

The CQ bit was checked by jonross@chromium.org

[jonross, 2015-03-19 14:20:32]

The CQ bit was unchecked by jonross@chromium.org

[jonross, 2015-03-19 14:48:16]

The CQ bit was checked by jonross@chromium.org

[commit-bot: I haz the power, 2015-03-19 14:48:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1023743002/1

[commit-bot: I haz the power, 2015-03-19 14:48:33]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-03-19 14:48:35]

CLs for remote refs other than refs/pending/heads/master must contain NOTRY=true
in order for the CQ to process them

[jonross, 2015-03-19 14:49:17]

The CQ bit was checked by jonross@chromium.org

[commit-bot: I haz the power, 2015-03-19 14:49:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1023743002/1

[commit-bot: I haz the power, 2015-03-19 14:50:43]

Committed patchset #1 (id:1)