bug#24651: 25.1; frame-inherited-parameters only partially works

[Stefan Monnier]

>> works here.  I see two ways to fix this.  Add such a timeout or, more
>> cleanly, merge the inherited parameters into 'params' _before_ calling
>> `frame-creation-function'.
> Without looking at the code, I think the latter sounds better.

Clearly, a `sit-for` is undesirable, so if we can avoid it we should.
Setting the params before creating the frame also has the advantage of
avoiding a visible resize.


        Stefan