The argument has to be non-null.
Created attachment 215058 [details] patch
Comment on attachment 215058 [details] patch View in context: https://bugs.webkit.org/attachment.cgi?id=215058&action=review > Source/WebCore/accessibility/AccessibilityRenderObject.cpp:2712 > + for (auto area = areaDescendants.begin(), end = areaDescendants.end() ; area != end; ++area) { One extra space here.
https://trac.webkit.org/r157924