Rename Node::treeScope() to Node::treeScopeOrDocument()

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

Index: third_party/WebKit/Source/core/dom/shadow/InsertionPoint.cpp
diff --git a/third_party/WebKit/Source/core/dom/shadow/InsertionPoint.cpp b/third_party/WebKit/Source/core/dom/shadow/InsertionPoint.cpp
index 3010f8a588e2d2fe7a5cc9a80c13e7c2e958b692..2182314016934d332bf6b21c1225add627c39d3e 100644
--- a/third_party/WebKit/Source/core/dom/shadow/InsertionPoint.cpp
+++ b/third_party/WebKit/Source/core/dom/shadow/InsertionPoint.cpp
@@ -201,7 +201,7 @@ Node::InsertionNotificationRequest InsertionPoint::insertedInto(ContainerNode* i
     if (ShadowRoot* root = containingShadowRoot()) {
         if (ElementShadow* rootOwner = root->owner()) {
             rootOwner->setNeedsDistributionRecalc();
-            if (canBeActive() && !m_registeredWithShadowRoot && insertionPoint->treeScope().rootNode() == root) {
+            if (canBeActive() && !m_registeredWithShadowRoot && insertionPoint->treeScopeOrDocument().rootNode() == root) {
                 m_registeredWithShadowRoot = true;
                 root->didAddInsertionPoint(this);
                 if (canAffectSelector())
@@ -234,7 +234,7 @@ void InsertionPoint::removedFrom(ContainerNode* insertionPoint)
     // Since this insertion point is no longer visible from the shadow subtree, it need to clean itself up.
     clearDistribution();
 
-    if (m_registeredWithShadowRoot && insertionPoint->treeScope().rootNode() == root) {
+    if (m_registeredWithShadowRoot && insertionPoint->treeScopeOrDocument().rootNode() == root) {
         DCHECK(root);
         m_registeredWithShadowRoot = false;
         root->didRemoveInsertionPoint(this);