Let the client compute the surface size on its own

This is a step to move the layout logic to the client side. We won't
obtain the surface size from the server then.

This CL also moves the logic about adjusting the LayoutParams of
wallpaper to the client side.

Bug: 161810301
Test: presubmit
Change-Id: I3a81e174035c67a285cab449c0701ee2fe6f6a24