Bridge View into the legacy ViewTransform shape so chrome can keep
calling worldToScreen / screenToWorld. View and ViewTransform
use opposite sign conventions for the translation half (view.x is
camera position; panX is canvas translation), so the adapter flips
the sign and multiplies by per-axis scale.
Bridge
Viewinto the legacyViewTransformshape so chrome can keep callingworldToScreen/screenToWorld.ViewandViewTransformuse opposite sign conventions for the translation half (view.xis camera position;panXis canvas translation), so the adapter flips the sign and multiplies by per-axis scale.