Fix Transparent Activities in Split Screen

The SizeCompatScale was not correctly inherited by a
TransparentActivity when TransparentPolicy is running.

Flag: EXEMPT small bug fixing
Fix: 376611239
Test: atest WmTests:TransparentPolicyTest
Test: atest WmTests:ActivityRecordTests

Change-Id: Ic20408a5f02c2f27d1a9a11aa3d9696df64205be
1 file changed