With the latest changes to the overview, the application view is now
clearly on a different level compared to the window picker. For that
reason it now makes sense to close it on Escape rather than hiding
the overview directly, as we do for search.
https://bugzilla.gnome.org/show_bug.cgi?id=682109
if (symbol == Clutter.Escape) {
if (this.active)
this.reset();
+ else if (this._showAppsButton.checked)
+ this._resetShowAppsButton();
else
Main.overview.hide();
return true;