[Mac] Use |-performSelector:withDelay:| to execute commands from the Wrench menu.

This avoids doing work from within the menu's nested run loop, which can lead to
wonky behavior.

BUG=49716
TEST=Enter full screen from Wrench menu a few times. The overlay always appears.

Review URL: http://codereview.chromium.org/3014021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@53185 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed