Add primary display id to TaskbarFeatureEvaluator

Gettinng display id from context is costly operation. Introducing primaryDisplayId as propery of TaskbarFeatureEvaluator.

Test: Presubmit
Bug: 438749684
Flag: EXEMPT bugfix
Change-Id: If17a91e04e9865b157c67bbd3303f22208fd4adb
1 file changed