Introduce Element::AttributeModificationParams

third_party/WebKit/Source/core/html/HTMLContentElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLContentElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLContentElement.cpp b/third_party/WebKit/Source/core/html/HTMLContentElement.cpp
index 364bdf5377d24df7ff2c0372c2b43cbff8172411..23f97fad833bad0e7876635e256fe469b39294a7 100644
--- a/third_party/WebKit/Source/core/html/HTMLContentElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLContentElement.cpp
@@ -70,18 +70,17 @@ void HTMLContentElement::parseSelect() {
     m_selectorList = CSSSelectorList();
 }
 
-void HTMLContentElement::parseAttribute(const QualifiedName& name,
-                                        const AtomicString& oldValue,
-                                        const AtomicString& value) {
-  if (name == selectAttr) {
+void HTMLContentElement::parseAttribute(
+    const AttributeModificationParams& params) {
+  if (params.name == selectAttr) {
     if (ShadowRoot* root = containingShadowRoot()) {
       if (!root->isV1() && root->owner())
         root->owner()->v0().willAffectSelector();
     }
     m_shouldParseSelect = true;
-    m_select = value;
+    m_select = params.newValue;
   } else {
-    InsertionPoint::parseAttribute(name, oldValue, value);
+    InsertionPoint::parseAttribute(params);
   }
 }