Migrate WTF::Vector::append() to ::push_back() [part 4 of N]

third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp

Index: third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp
diff --git a/third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp b/third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp
index 28d5fdab329e5bc0cb7aeca110d0588ad0a28996..e9209399cdf0c9a3ff77d2c49280d28f445d6b1b 100644
--- a/third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp
+++ b/third_party/WebKit/Source/core/dom/shadow/ElementShadowV0.cpp
@@ -71,9 +71,9 @@ inline void DistributionPool::populateChildren(const ContainerNode& parent) {
     if (isActiveInsertionPoint(*child)) {
       InsertionPoint* insertionPoint = toInsertionPoint(child);
       for (size_t i = 0; i < insertionPoint->distributedNodesSize(); ++i)
-        m_nodes.append(insertionPoint->distributedNodeAt(i));
+        m_nodes.push_back(insertionPoint->distributedNodeAt(i));
     } else {
-      m_nodes.append(child);
+      m_nodes.push_back(child);
     }
   }
   m_distributed.resize(m_nodes.size());
@@ -170,7 +170,7 @@ void ElementShadowV0::distribute() {
       if (isHTMLShadowElement(*point)) {
         DCHECK(!shadowInsertionPoint);
         shadowInsertionPoint = toHTMLShadowElement(point);
-        shadowInsertionPoints.append(shadowInsertionPoint);
+        shadowInsertionPoints.push_back(shadowInsertionPoint);
       } else {
         pool.distributeTo(point, this);
         if (ElementShadow* shadow =
@@ -208,7 +208,7 @@ void ElementShadowV0::didDistributeNode(const Node* node,
       m_nodeToInsertionPoints.add(node, nullptr);
   if (result.isNewEntry)
     result.storedValue->value = new DestinationInsertionPoints;
-  result.storedValue->value->append(insertionPoint);
+  result.storedValue->value->push_back(insertionPoint);
 }
 
 const SelectRuleFeatureSet& ElementShadowV0::ensureSelectFeatureSet() {