Automatic translation import

Change-Id: I2c4d64a04a655b4dbbfa9cdaf2427fdc6a2a6a94
Make sure mFullScreenScale is non-zero before animating.

If the led flash is already on when opening up the application
the background would be all black instead of blue since the value
of mFullScreenScale is at the default value of 0.

Change-Id: Id9dd00d93728c9043ee9a897ab143560c0908f60
torch: toggle on/off once

Change-Id: I16c2923912fbc459b6761a9a0d80f5bbea3aaf39