Support :hover/:active in quirks when leftmost in compound.

Source/core/css/SelectorChecker.cpp

Index: Source/core/css/SelectorChecker.cpp
diff --git a/Source/core/css/SelectorChecker.cpp b/Source/core/css/SelectorChecker.cpp
index 099a94cd6a4073d6787053d246c48cf3df6305a2..5e6120d9b62cc8ea6a24da162d634a57793cb8f9 100644
--- a/Source/core/css/SelectorChecker.cpp
+++ b/Source/core/css/SelectorChecker.cpp
@@ -781,7 +781,7 @@ bool SelectorChecker::checkPseudoClass(const SelectorCheckingContext& context, c
     case CSSSelector::PseudoHover:
         // If we're in quirks mode, then hover should never match anchors with no
         // href and *:hover should not match anything. This is important for sites like wsj.com.

[kochi, 2015/01/15 10:04:11]

Could you move this comment and the comment for PseudoActive (line796)
into header and update with the link for quirks spec?

[rune, 2015/01/15 10:29:02]

Done.

I removed the reference to wsj.com since that site is using strict mode now.

-        if (m_strictParsing || context.isSubSelector || element.isLink()) {
+        if (shouldMatchHoverOrActive(context)) {
             if (m_mode == ResolvingStyle) {
                 if (context.elementStyle)
                     context.elementStyle->setAffectedByHover();
@@ -795,7 +795,7 @@ bool SelectorChecker::checkPseudoClass(const SelectorCheckingContext& context, c
     case CSSSelector::PseudoActive:
         // If we're in quirks mode, then :active should never match anchors with no
         // href and *:active should not match anything.
-        if (m_strictParsing || context.isSubSelector || element.isLink()) {
+        if (shouldMatchHoverOrActive(context)) {
             if (m_mode == ResolvingStyle) {
                 if (context.elementStyle)
                     context.elementStyle->setAffectedByActive();