Deactivate all input methods (except keyboard layouts) when screen is locked. Reactivates them when screen is unlocked.
Deactivate all input methods (except keyboard layouts) when screen is locked.
Reactivates them when screen is unlocked.

Note that if two or more keyboard layouts are active, you can switch layout by pressing the language hot-key (Shift+Alt), though the language indicator ("EN") is not clickable yet.

BUG=chromium-os:3936
BUG=chromium-os:2714
TEST=manual

Review URL: http://codereview.chromium.org/2771005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@49361 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser