Contacts/Dialer/InCallUI: Dark theme, (5/7):

Part 1/7: frameworks/base
Part 2/7: Contacts
Part 3/7: ContactsCommon
Part 4/7: Dialer
Part 5/7: InCallUI
Part 6/7: PhoneCommon
Part 7/7: services/Telephony
incallui: Code cleanups

 * Address code review issues

Change-Id: I96666ae5135ba89fc5cfda7c615aa8c4845bc0a4