Use type aliases for StaticElementList/StaticNodeList

We currently have a mixture of using typedefs and type aliases for forward
referencing StaticElementList and StaticNodeElement. Stick to type aliases
since they are more modern and a C++11 allowed feature in Chromium.

Review-Url: https://codereview.chromium.org/2317083003
Cr-Commit-Position: refs/heads/master@{#417085}

third_party/WebKit/Source/core/dom/MutationRecord.h

@@ -40,7 +40,7 @@ namespace blink {
 class Node;
 class QualifiedName;
 template <typename NodeType> class StaticNodeTypeList;
-typedef StaticNodeTypeList<Node> StaticNodeList;
+using StaticNodeList = StaticNodeTypeList<Node>;
 
 class MutationRecord : public GarbageCollectedFinalized<MutationRecord>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();

third_party/WebKit/Source/core/dom/SelectorQuery.h

@@ -42,7 +42,7 @@ class Document;
 class Element;
 class ExceptionState;
 template <typename NodeType> class StaticNodeTypeList;
-typedef StaticNodeTypeList<Element> StaticElementList;
+using StaticElementList = StaticNodeTypeList<Element>;
 
 class SelectorDataList {
     DISALLOW_NEW();

third_party/WebKit/Source/core/dom/StaticNodeList.h

@@ -58,8 +58,7 @@ private:
     HeapVector<Member<NodeType>> m_nodes;
 };
 
-typedef StaticNodeTypeList<Node> StaticNodeList;
-typedef StaticNodeTypeList<Element> StaticElementList;
+using StaticNodeList = StaticNodeTypeList<Node>;
 
 template <typename NodeType>
 StaticNodeTypeList<NodeType>* StaticNodeTypeList<NodeType>::adopt(HeapVector<Member<NodeType>>& nodes)

third_party/WebKit/Source/core/testing/Internals.h

@@ -70,7 +70,7 @@ class TypeConversions;
 class UnionTypesTest;
 class ScrollState;
 template <typename NodeType> class StaticNodeTypeList;
-typedef StaticNodeTypeList<Node> StaticNodeList;
+using StaticNodeList = StaticNodeTypeList<Node>;
 
 class Internals final : public GarbageCollectedFinalized<Internals>, public ScriptWrappable, public ContextLifecycleObserver, public ValueIterable<int> {
     DEFINE_WRAPPERTYPEINFO();