+
+- (BOOL)_needsPreHTML5ParserQuirks
+{
+ // AOL Instant Messenger and Microsoft My Day contain markup incompatible
+ // with the new HTML5 parser. If these applications were linked against a
+ // version of WebKit prior to the introduction of the HTML5 parser, enable
+ // parser quirks to maintain compatibility. For details, see
+ // <https://bugs.webkit.org/show_bug.cgi?id=46134> and
+ // <https://bugs.webkit.org/show_bug.cgi?id=46334>.
+ static bool isApplicationNeedingParserQuirks = !WebKitLinkedOnOrAfter(WEBKIT_FIRST_VERSION_WITH_HTML5_PARSER)
+ && (applicationIsAOLInstantMessenger() || applicationIsMicrosoftMyDay());
+
+ return isApplicationNeedingParserQuirks
+#if ENABLE(DASHBOARD_SUPPORT)
+ // Pre-HTML5 parser quirks are required to remain compatible with many
+ // Dashboard widgets. See <rdar://problem/8175982>.
+ || (_private->page && _private->page->settings()->usesDashboardBackwardCompatibilityMode())
+#endif
+ || [[self preferences] usePreHTML5ParserQuirks];
+}
+
+- (BOOL)_needsUnrestrictedGetMatchedCSSRules
+{
+ static bool needsUnrestrictedGetMatchedCSSRules = !WebKitLinkedOnOrAfter(WEBKIT_FIRST_VERSION_WITH_GET_MATCHED_CSS_RULES_RESTRICTIONS) && applicationIsSafari();
+ return needsUnrestrictedGetMatchedCSSRules;
+}
+