Potential savings here. We have a looooot of FontDescription copies thanks to copy-on-write StyleInheritedData.
Created attachment 216909 [details] Patch
Comment on attachment 216909 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=216909&action=review > Source/WebCore/platform/graphics/FontDescription.h:235 > +inline bool FontDescription::hasEqualFamilies(const FontDescription& other) const > +{ > + if (m_families.data() == other.m_families.data()) > + return true; > + if (m_families.size() != other.m_families.size()) > + return false; > + for (unsigned i = 0; i < m_families.size(); ++i) { > + if (m_families[i] != other.m_families[i]) > + return false; > + } > + return true; > +} Seems more like this could be operator== or equals in RefCountedArray
Committed r159279: <http://trac.webkit.org/changeset/159279>