Rename TreeScope::IsInclusiveOlderSiblingShadowRootOrAncestorTreeScopeOf

OlderSiblingShadowRoot no longer makes sense here because it is for multiple shadow roots.

Change-Id: I6f3f1404a0b0bf48a548ea8a021871506f591ad3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1531923
Auto-Submit: Hayato Ito <hayato@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642439}

third_party/blink/renderer/core/dom/events/event_path.cc

@@ -407,13 +407,13 @@ void EventPath::EnsureWindowEventContext() {
 #if DCHECK_IS_ON()
 void EventPath::CheckReachability(TreeScope& tree_scope,
                                   TouchList& touch_list) {
-  for (wtf_size_t i = 0; i < touch_list.length(); ++i)
+  for (wtf_size_t i = 0; i < touch_list.length(); ++i) {
     DCHECK(touch_list.item(i)
                ->target()
                ->ToNode()
                ->GetTreeScope()
-               .IsInclusiveOlderSiblingShadowRootOrAncestorTreeScopeOf(
-                   tree_scope));
+               .IsInclusiveAncestorTreeScopeOf(tree_scope));
+  }
 }
 #endif
 

third_party/blink/renderer/core/dom/events/tree_scope_event_context.h

@@ -107,10 +107,8 @@ inline void TreeScopeEventContext::CheckReachableNode(EventTarget& target) {
   // FIXME: Checks also for SVG elements.
   if (target.ToNode()->IsSVGElement())
     return;
-  DCHECK(target.ToNode()
-             ->GetTreeScope()
-             .IsInclusiveOlderSiblingShadowRootOrAncestorTreeScopeOf(
-                 GetTreeScope()));
+  DCHECK(target.ToNode()->GetTreeScope().IsInclusiveAncestorTreeScopeOf(
+      GetTreeScope()));
 }
 #else
 inline void TreeScopeEventContext::CheckReachableNode(EventTarget&) {}

third_party/blink/renderer/core/dom/tree_scope.cc

@@ -82,8 +82,7 @@ void TreeScope::ResetTreeScope() {
   selection_ = nullptr;
 }
 
-bool TreeScope::IsInclusiveOlderSiblingShadowRootOrAncestorTreeScopeOf(
-    const TreeScope& scope) const {
+bool TreeScope::IsInclusiveAncestorTreeScopeOf(const TreeScope& scope) const {
   for (const TreeScope* current = &scope; current;
        current = current->ParentTreeScope()) {
     if (current == this)

third_party/blink/renderer/core/dom/tree_scope.h

@@ -64,8 +64,7 @@ class CORE_EXPORT TreeScope : public GarbageCollectedMixin {
 
   TreeScope* ParentTreeScope() const { return parent_tree_scope_; }
 
-  bool IsInclusiveOlderSiblingShadowRootOrAncestorTreeScopeOf(
-      const TreeScope&) const;
+  bool IsInclusiveAncestorTreeScopeOf(const TreeScope&) const;
 
   Element* AdjustedFocusedElement() const;
   // Finds a retargeted element to the given argument, when the retargeted