Code problems detected by cppcheck

Source/core/dom/Range.cpp

Index: Source/core/dom/Range.cpp
diff --git a/Source/core/dom/Range.cpp b/Source/core/dom/Range.cpp
index 0fbd5d7368de4202d2956ba7a7c97b1714d53c81..7cee148ee7ba831f58fc67beccde79ad8aad4d80 100644
--- a/Source/core/dom/Range.cpp
+++ b/Source/core/dom/Range.cpp
@@ -877,7 +877,7 @@ PassRefPtr<Node> Range::processAncestorsAndTheirSiblings(ActionType action, Node
         ancestors.append(n);
 
     RefPtr<Node> firstChildInAncestorToProcess = direction == ProcessContentsForward ? container->nextSibling() : container->previousSibling();
-    for (Vector<RefPtr<Node> >::const_iterator it = ancestors.begin(); it != ancestors.end(); it++) {
+    for (Vector<RefPtr<Node> >::const_iterator it = ancestors.begin(); it != ancestors.end(); ++it) {
         RefPtr<Node> ancestor = *it;
         if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
             if (RefPtr<Node> clonedAncestor = ancestor->cloneNode(false)) { // Might have been removed already during mutation event.
@@ -896,7 +896,7 @@ PassRefPtr<Node> Range::processAncestorsAndTheirSiblings(ActionType action, Node
             child = (direction == ProcessContentsForward) ? child->nextSibling() : child->previousSibling())
             nodes.append(child);
 
-        for (NodeVector::const_iterator it = nodes.begin(); it != nodes.end(); it++) {
+        for (NodeVector::const_iterator it = nodes.begin(); it != nodes.end(); ++it) {
             Node* child = it->get();
             switch (action) {
             case DELETE_CONTENTS: