Update controls after addToDisplay/relayout before dispatching insets

A window might request to control insets before it is added to WM and
expect the first dispatched WindowInsets as requested.

The first insets state returned from addToDisplay or relayout might be
not expected if the window just become thecontrol target in the
function.

With this CL, WM can return controls from addToDisplay and relayout, so
that the client can apply controls immediately, and update controlled
insets sources before dispatching the insets to the view hierarchy. This
enaures the insets dispatched are up-to-date.

Fix: 150756571
Test: atest WindowInsetsControllerTests RelayoutPerfTest
            WindowAddRemovePerfTest
Change-Id: Ib78c24beb7af5a54ad78935c3ddb260ef9645212