Introduce Element::AttributeModificationParams

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

Index: third_party/WebKit/Source/core/html/HTMLSourceElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLSourceElement.cpp b/third_party/WebKit/Source/core/html/HTMLSourceElement.cpp
index ef1628994099f582c704dcb0c1123ae827bedae4..1bbece04062ec88c930d3e2f646809fa5b4be87d 100644
--- a/third_party/WebKit/Source/core/html/HTMLSourceElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLSourceElement.cpp
@@ -164,12 +164,12 @@ bool HTMLSourceElement::isURLAttribute(const Attribute& attribute) const {
   return attribute.name() == srcAttr || HTMLElement::isURLAttribute(attribute);
 }
 
-void HTMLSourceElement::parseAttribute(const QualifiedName& name,
-                                       const AtomicString& oldValue,
-                                       const AtomicString& value) {
-  HTMLElement::parseAttribute(name, oldValue, value);
+void HTMLSourceElement::parseAttribute(
+    const AttributeModificationParams& params) {
+  HTMLElement::parseAttribute(params);
+  const QualifiedName& name = params.name;
   if (name == mediaAttr)
-    createMediaQueryList(value);
+    createMediaQueryList(params.newValue);
   if (name == srcsetAttr || name == sizesAttr || name == mediaAttr ||
       name == typeAttr) {
     Element* parent = parentElement();