Fix ScrollView and HorizontalScrollView overscroll retraction
Bug: 288270962
When overscrolling, the scroll was being stuck beyond the range
of the scroll. This left it in a funny position and the next
time the ScrollView or HorizontalScrollView had an interaction,
it would snap to a valid scroll offset.
This CL allows the scrolling to move the content back to the
expected position without affecting the stretch.
Test: new tests, manual testing
Change-Id: I8f5ae18d44adf55d9ce026b0e31f3d1a140d57c6
9 files changed