Rename nodes/elements traversal function names.

Source/core/page/FocusController.cpp

Index: Source/core/page/FocusController.cpp
diff --git a/Source/core/page/FocusController.cpp b/Source/core/page/FocusController.cpp
index 2453e2841cf533d9d69c07856e3e59f6b9e69189..099804d6a6874c75eb84676edaffb218c928aa52 100644
--- a/Source/core/page/FocusController.cpp
+++ b/Source/core/page/FocusController.cpp
@@ -545,7 +545,7 @@ static Node* nextNodeWithGreaterTabIndex(Node* start, int tabIndex)
     // Search is inclusive of start
     int winningTabIndex = std::numeric_limits<short>::max() + 1;
     Node* winner = 0;
-    for (Node& node : NodeTraversal::from(start)) {
+    for (Node& node : NodeTraversal::startsAt(start)) {
         if (shouldVisit(&node) && node.tabIndex() > tabIndex && node.tabIndex() < winningTabIndex) {
             winner = &node;
             winningTabIndex = node.tabIndex();
@@ -576,7 +576,7 @@ Node* FocusController::nextFocusableNode(FocusNavigationScope scope, Node* start
         int tabIndex = adjustedTabIndex(start);
         // If a node is excluded from the normal tabbing cycle, the next focusable node is determined by tree order
         if (tabIndex < 0) {
-            for (Node& node : NodeTraversal::fromNext(*start)) {
+            for (Node& node : NodeTraversal::startsAfter(*start)) {
                 if (shouldVisit(&node) && adjustedTabIndex(&node) >= 0)
                     return &node;
             }