Auto rotate on lid rotation changes.
Based on patch to read the accelerometer https://codereview.chromium.org/
200643005, this listens to accelerometer updates and rotates the screen.
BUG=342907
TEST=MaximizeModeControllerTest.AccelerometerRotation, MaximizeModeControllerTest.AccelerometerIgnoresLowAngles, MaximizeModeControllerTest.AccelerometerSticky, MaximizeModeControllerTest.RotationOnlyInMaximizeMode
TEST=Rotate device, ash should rotate to match device orientation.
Review URL: https://codereview.chromium.org/
196413017
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@261692 0039d316-1c4b-4281-b951-d872f2087c98