Closing the controller removes it from NSApp

Atom/Classes/AtomController.m

@@ -49,6 +49,10 @@
   [[webView mainFrame] loadRequest:request];
 }
 
+- (void)close {
+  [(AtomApp *)NSApp removeController:self];
+}
+
 - (NSString *)projectPath {
   return PROJECT_DIR;
 }
@@ -58,10 +62,4 @@
   return defaultMenuItems;
 }
 
-// WindowDelegate
-- (BOOL)windowShouldClose:(id)sender {
-  [(AtomApp *)NSApp removeController:self];
-  return YES;
-}
-
 @end