Rename PlatformSurfaceTexture to SurfaceTexture
This is, primarily, to make naming consistent with SurfaceItem, SurfacePixmap and just "Surface" in the future.
No functional changes besides only renaming some classes. From !1380
This is, primarily, to make naming consistent with SurfaceItem, SurfacePixmap and just "Surface" in the future.
No functional changes besides only renaming some classes. From !1380