Add support for attribute selectors in TargetedStyleRecalc.

Source/core/css/invalidation/StyleInvalidator.cpp

Index: Source/core/css/invalidation/StyleInvalidator.cpp
diff --git a/Source/core/css/invalidation/StyleInvalidator.cpp b/Source/core/css/invalidation/StyleInvalidator.cpp
index 710993a51aa685350679ffb4a04e75f74d696234..345e57b451589be9c021086d3cb3a7572d75a7ed 100644
--- a/Source/core/css/invalidation/StyleInvalidator.cpp
+++ b/Source/core/css/invalidation/StyleInvalidator.cpp
@@ -35,18 +35,24 @@ StyleInvalidator::StyleInvalidator(Document& document)
 void StyleInvalidator::RecursionData::pushInvalidationSet(const DescendantInvalidationSet& invalidationSet)
 {
     invalidationSet.getClasses(m_invalidationClasses);
+    invalidationSet.getAttributes(m_invalidationAttributes);
     m_foundInvalidationSet = true;
 }
 
 bool StyleInvalidator::RecursionData::matchesCurrentInvalidationSets(Element& element)
 {
-    if (!element.hasClass())
-        return false;
-
-    const SpaceSplitString& classNames = element.classNames();
-    for (Vector<AtomicString>::const_iterator it = m_invalidationClasses.begin(); it != m_invalidationClasses.end(); ++it) {
-        if (classNames.contains(*it))
-            return true;
+    if (element.hasClass()) {
+        const SpaceSplitString& classNames = element.classNames();
+        for (Vector<AtomicString>::const_iterator it = m_invalidationClasses.begin(); it != m_invalidationClasses.end(); ++it) {
+            if (classNames.contains(*it))
+                return true;
+        }
+    }
+    if (element.hasAttributes()) {
+        for (Vector<AtomicString>::const_iterator it = m_invalidationAttributes.begin(); it != m_invalidationAttributes.end(); ++it) {
+            if (element.hasAttribute(*it))
+                return true;
+        }
     }
 
     return false;