Reland^2 "Enable input window rotation flag"

7719c7d2

This may cause some tests to fail because of b/201777251, but since we
don't have a good idea of which/how many tests are affected, we can
judge the impact after landing.

Bug: 179274888
Test: manual

Change-Id: Ic49d0fe8024d4fcf4eab4ebe1a4a5189d8a3cec7