Revert "Revert "Revert "CPScrollView-scrollerStyle-fix"""

This reverts commit 653fdb999e.

AppKit/CPScrollView.j

@@ -1290,6 +1290,9 @@ Notifies the delegate when the scroll view has finished scrolling.
     if (_isObserving)
         return;
 
+    //Make sure to have the last global style for the scroller
+    [self _didReceiveDefaultStyleChange:nil];
+
     [[CPNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(_didReceiveDefaultStyleChange:)
                                                  name:CPScrollerStyleGlobalChangeNotification