Make EUserSelect an enum class.

third_party/WebKit/Source/core/editing/EditingStrategy.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/EditingStrategy.h"
 
 #include "core/editing/EditingUtilities.h"
 #include "core/layout/LayoutObject.h"
 
 namespace blink {
@@ skipping 59 matching lines @@
 
   // editingIgnoresContent uses the same logic in
   // isEmptyNonEditableNodeInEditable (EditingUtilities.cpp). We don't
   // understand why this function returns 1 even when the node doesn't have
   // children.
   return 1;
 }
 
 template <typename Strategy>
 Node* EditingAlgorithm<Strategy>::RootUserSelectAllForNode(Node* node) {
-  if (!node || UsedValueOfUserSelect(*node) != SELECT_ALL)
+  if (!node || UsedValueOfUserSelect(*node) != EUserSelect::kAll)
     return nullptr;
   Node* parent = Strategy::Parent(*node);
   if (!parent)
     return node;
 
   Node* candidate_root = node;
   while (parent) {
     if (!parent->GetLayoutObject()) {
       parent = Strategy::Parent(*parent);
       continue;
     }
-    if (UsedValueOfUserSelect(*parent) != SELECT_ALL)
+    if (UsedValueOfUserSelect(*parent) != EUserSelect::kAll)
       break;
     candidate_root = parent;
     parent = Strategy::Parent(*candidate_root);
   }
   return candidate_root;
 }
 
 template class CORE_TEMPLATE_EXPORT EditingAlgorithm<NodeTraversal>;
 template class CORE_TEMPLATE_EXPORT EditingAlgorithm<FlatTreeTraversal>;
 
 }  // namespace blink