Revert "Revert "Handle case when snapshot dimensions don't match""

This reverts commit ba53d8ae.

Also fixes that we always had a size mismatch.

Test: TaskSnapshotSurfaceTest
Test: Open app in different orientation than snapshot, make sure
looks ok.

Bug: 36991071
Change-Id: If572b68fd72cec7679984fdff0be5905caba69f4
Fixes: 36703868