Introduce Element::AttributeModificationParams

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

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 42 matching lines @@
     const QualifiedName& name,
     const AtomicString& value,
     MutableStylePropertySet* style) {
   if (name == widthAttr)
     addHTMLLengthToStyle(style, CSSPropertyWidth, value);
   else
     HTMLTablePartElement::collectStyleForPresentationAttribute(name, value,
                                                                style);
 }
 
-void HTMLTableColElement::parseAttribute(const QualifiedName& name,
-                                         const AtomicString& oldValue,
-                                         const AtomicString& value) {
-  if (name == spanAttr) {
+void HTMLTableColElement::parseAttribute(
+    const AttributeModificationParams& params) {
+  if (params.name == spanAttr) {
     unsigned newSpan = 0;
-    if (value.isEmpty() || !parseHTMLNonNegativeInteger(value, newSpan) ||
-        newSpan < 1) {
+    if (params.newValue.isEmpty() ||
+        !parseHTMLNonNegativeInteger(params.newValue, newSpan) || newSpan < 1) {
       // If the value of span is not a valid non-negative integer greater than
       // zero, set it to 1.
       newSpan = 1;
     }
     newSpan = std::min(newSpan, HTMLTableCellElement::maxColSpan());
     m_span = newSpan;
     if (layoutObject() && layoutObject()->isLayoutTableCol())
       layoutObject()->updateFromElement();
-  } else if (name == widthAttr) {
-    if (!value.isEmpty()) {
+  } else if (params.name == widthAttr) {
+    if (!params.newValue.isEmpty()) {
       if (layoutObject() && layoutObject()->isLayoutTableCol()) {
         LayoutTableCol* col = toLayoutTableCol(layoutObject());
         int newWidth = width().toInt();
         if (newWidth != col->size().width())
           col->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(
               LayoutInvalidationReason::AttributeChanged);
       }
     }
   } else {
-    HTMLTablePartElement::parseAttribute(name, oldValue, value);
+    HTMLTablePartElement::parseAttribute(params);
   }
 }
 
 const StylePropertySet*
 HTMLTableColElement::additionalPresentationAttributeStyle() {
   if (!hasTagName(colgroupTag))
     return nullptr;
   if (HTMLTableElement* table = findParentTable())
     return table->additionalGroupStyle(false);
   return nullptr;
 }
 
 void HTMLTableColElement::setSpan(unsigned n) {
   setUnsignedIntegralAttribute(spanAttr, n ? n : 1);
 }
 
 const AtomicString& HTMLTableColElement::width() const {
   return getAttribute(widthAttr);
 }
 
 }  // namespace blink