[Editing][DOM][CodeHealth] Make Node::isContentEditable and Node::isRichEditable global functions.

third_party/WebKit/Source/core/page/TouchAdjustment.cpp

 /*
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 98 matching lines @@
     return node->layoutObject()->isBox();
 }
 
 bool providesContextMenuItems(Node* node)
 {
     // This function tries to match the nodes that receive special context-menu items in
     // ContextMenuController::populate(), and should be kept uptodate with those.
     ASSERT(node->layoutObject() || node->isShadowRoot());
     if (!node->layoutObject())
         return false;
-    if (node->isContentEditable())
+    if (isContentEditable(*node))
         return true;
     if (node->isLink())
         return true;
     if (node->layoutObject()->isImage())
         return true;
     if (node->layoutObject()->isMedia())
         return true;
     if (node->layoutObject()->canBeSelectionLeaf()) {
         // If the context menu gesture will trigger a selection all selectable nodes are valid targets.
         if (node->layoutObject()->frame()->editor().behavior().shouldSelectOnContextualMenuClick())
@@ skipping 161 matching lines @@
         // Skip nodes who's responders are ancestors of other responders. This gives preference to
         // the inner-most event-handlers. So that a link is always preferred even when contained
         // in an element that monitors all click-events.
         Node* respondingNode = responderMap.get(candidate);
         ASSERT(respondingNode);
         if (ancestorsToRespondersSet.contains(respondingNode))
             continue;
         // Consolidate bounds for editable content.
         if (editableAncestors.contains(candidate))
             continue;
-        if (candidate->isContentEditable()) {
+        if (isContentEditable(*candidate)) {
             Node* replacement = candidate;
             Node* parent = candidate->parentOrShadowHostNode();
-            while (parent && parent->isContentEditable()) {
+            while (parent && isContentEditable(*parent)) {
                 replacement = parent;
                 if (editableAncestors.contains(replacement)) {
                     replacement = nullptr;
                     break;
                 }
                 editableAncestors.add(replacement);
                 parent = parent->parentOrShadowHostNode();
             }
             candidate = replacement;
         }
@@ skipping 182 matching lines @@
 
 bool findBestZoomableArea(Node*& targetNode, IntRect& targetArea, const IntPoint& touchHotspot, const IntRect& touchArea, const HeapVector<Member<Node>>& nodes)
 {
     IntPoint targetPoint;
     TouchAdjustment::SubtargetGeometryList subtargets;
     TouchAdjustment::compileZoomableSubtargets(nodes, subtargets);
     return TouchAdjustment::findNodeWithLowestDistanceMetric(targetNode, targetPoint, targetArea, touchHotspot, touchArea, subtargets, TouchAdjustment::zoomableIntersectionQuotient);
 }
 
 } // namespace blink