Increase timeout to grab input  Let's wait longer (10 min up time) before giving up so that user can report "cros didn't lock screen when xyz", instead of just killing chrome. Stack trace doesn't give any information right now and I need user's feedback to trouble shoot this further.
Increase timeout to grab input
 Let's wait longer (10 min up time) before giving up so that user can report "cros didn't lock screen when xyz", instead of just killing chrome. Stack trace doesn't give
any information right now and I need user's feedback to trouble shoot this further.

BUG=chromium-os:9938, chromium-os:11453
TEST=none

Review URL: http://codereview.chromium.org/6383005

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@73201 0039d316-1c4b-4281-b951-d872f2087c98

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