Mac: Fix SDK 10.11 Compile errors after clang roll in r387792

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 5e46b72fa8c5a2a84dd93ac2518023b0e36a24cc..f482d56c7a8eb7b7b771750d6c72f8e5c40bf78f 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -1005,11 +1005,6 @@ class AppControllerProfileObserver : public ProfileAttributesStorage::Observer {
   return enable;
 }
 
-// Called when the user picks a menu item when there are no key windows, or when
-// there is no foreground browser window. Calls through to the browser object to
-// execute the command. This assumes that the command is supported and doesn't
-// check, otherwise it should have been disabled in the UI in
-// |-validateUserInterfaceItem:|.
 - (void)commandDispatch:(id)sender {
   Profile* lastProfile = [self safeLastProfileForNewWindows];