GetBatteryInfo() battery automation hook.

Add a GetBatteryInfo() function accessible through PyAuto. GetBatteryInfo provides information on the state of the battery, including whether a battery is present, how much battery is left, and whether it is charging or discharging.

BUG=chromium-os:12524
TEST=testBatteryInfo included. Use python chromeos_basic.py

Review URL: http://codereview.chromium.org/6760013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79774 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed