Handle reperenting of InlineContentView

When an inline content view is reparented its surface is
getting offset and not being under the view itelf. This is
because the surface views manage the postion of their
surface and are assuming a location based off the window's
surface position. However after a reparenting the inline
content view's surface position becomes relative to that
of the new parent surface view. For example, two surface
views at position (10, 10) being reparented would reslut
in the surface of the parent being at (10, 10) while the
surface of the child being at (20, 20) while both views
would still be at (10, 10).

To address this we are intecepting when an inline content
view's surface is reparented and get a weak reference to
the view that owns the new parent surface. We then position
the inline content view's surface relative to the view that
owns the new parent surface, i.e. we position the surface
such that its location would not change because of the
fact it is being reparented.

While at this make sure the inline content view is marked
as not important for a11y to ernsure the a11y plugins don't
try to click on the view tree in the app's process but
insted on the views in the remote proccess, i.e. on the
embedded view tree.

bug:153826463

Test: atest android.widget.cts.inline.InlineContentViewTest#testReparenting

Change-Id: I2cff4b88d404a740bc447668e948eabccad084d2