optimize
Created attachment 217416 [details] patch
Comment on attachment 217416 [details] patch View in context: https://bugs.webkit.org/attachment.cgi?id=217416&action=review > Source/WebCore/rendering/SimpleLineLayoutFunctions.cpp:90 > auto run = *it; I think this copies the run. Maybe it should be const auto& instead?
https://trac.webkit.org/r159560