Move BaseActivityInterface task size methods to DeviceProfile.

Fix: 238593212
Test: DeviceProfilePhoneTest.kt
Test: DeviceProfileVerticalBarTest.kt
Test: DeviceProfilePhone3ButtonTest.kt
Test: DeviceProfileVerticalBar3ButtonTest.kt
Test: DeviceProfileTabletLandscapeTest.kt
Test: DeviceProfileTabletPortraitTest.kt
Test: DeviceProfileTabletLandscape3ButtonTest.kt
Test: DeviceProfileTabletPortrait3ButtonTest.kt
Test: DeviceProfileTwoPanelLandscapeTest.kt
Test: DeviceProfileTwoPanelPortraitTest.kt
Test: DeviceProfileTwoPanelLandscape3ButtonTest.kt
Test: DeviceProfileTwoPanelPortrait3ButtonTest.kt
Change-Id: I30324d34ca119a467f530b590949743c2ba7b91a