> The version of Emacs Trunk built on June 1, 2014 works well -- i.e., the two examples in the current bug report work as expected.
 >
 > GNU Emacs 24.4.50.1 (x86_64-apple-darwin10.8.0, NS appkit-1038.36 Version 10.6.8 (Build 10K549)) of 2014-06-01 on MP.local
 >
 > I did not test any builds between the dates of June 2, 2014 through August 6, 2014.
 >
 > Yes, `(set-frame-size (selected-frame) 1894 1054 t)`, works well with the August 7 and 8, 2014 build when it is evaluated all by itself.
 >
 > `M-x toggle-frame-maximized` works well with the August 7 and 8, 2014 build.

Thanks for the information.  Can you please try the attached patch?

Thanks, martin