Merge "Convert AutomaticBrightnessController to float" into rvc-dev am: 02060768

...android/server/display/AutomaticBrightnessController.java

...va/com/android/server/display/DisplayPowerController.java

...ore/java/com/android/server/display/HysteresisLevels.java

...oid/server/display/AutomaticBrightnessControllerTest.java