for Bug 39621 Need to turn on nsViewManager by default

add ifdef DEBUG
r=kmcclusk@netscape.com, sr=roc+moz@cs.cmu.edu

view/src/nsViewManager.cpp

@@ -1238,8 +1238,10 @@ void nsViewManager::RenderViews(nsIView *aRootView, nsIRenderingContext& aRC, co
       // XXX Which color should we use for these bits?
       aRC.SetColor(NS_RGB(128, 128, 128));
       aRC.FillRect(finalTransparentRect);
+#ifdef DEBUG
       printf("XXX: Using final transparent rect, x=%d, y=%d, width=%d, height=%d\n",
         finalTransparentRect.x, finalTransparentRect.y, finalTransparentRect.width, finalTransparentRect.height);
+#endif
     }
     
     // initialize various counters. These are updated in OptimizeDisplayListClipping.