Fixes long screenshot landscape and split window bugs

Fixes incorrect view transform in ViewRenderer

The tranform was mapping to on-screen coordinates, where
in-window position is needed.

Bug: 183045126
Bug: 189289758
Bug: 189235588

Test: manual, long screenshot the bottom app in split window mode
Change-Id: Ibaa9987b229f9e8ec0a1002ee84d797ca6026fb9