Make ETextModify an enum class.

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 314 matching lines @@
     return false;
 
   // Ideally we'd call DCHECK(!needsStyleRecalc()) here, but
   // ContainerNode::setFocus() calls setNeedsStyleRecalc(), so the assertion
   // would fire in the middle of Document::setFocusedNode().
 
   for (const Node& ancestor : NodeTraversal::InclusiveAncestorsOf(node)) {
     if ((ancestor.IsHTMLElement() || ancestor.IsDocumentNode()) &&
         ancestor.GetLayoutObject()) {
       switch (ancestor.GetLayoutObject()->Style()->UserModify()) {
-        case READ_ONLY:
+        case EUserModify::kReadOnly:
           return false;
-        case READ_WRITE:
+        case EUserModify::kReadWrite:
           return true;
-        case READ_WRITE_PLAINTEXT_ONLY:
+        case EUserModify::kReadWritePlaintextOnly:
           return editable_level != kRichlyEditable;
       }
       NOTREACHED();
       return false;
     }
   }
 
   return false;
 }
 
@@ skipping 628 matching lines @@
   return nullptr;
 }
 
 EUserSelect UsedValueOfUserSelect(const Node& node) {
   if (node.IsHTMLElement() && ToHTMLElement(node).IsTextControl())
     return SELECT_TEXT;
   if (!node.GetLayoutObject())
     return SELECT_NONE;
 
   const ComputedStyle* style = node.GetLayoutObject()->Style();
-  if (style->UserModify() != READ_ONLY)
+  if (style->UserModify() != EUserModify::kReadOnly)
     return SELECT_TEXT;
 
   return style->UserSelect();
 }
 
 template <typename Strategy>
 TextDirection DirectionOfEnclosingBlockAlgorithm(
     const PositionTemplate<Strategy>& position) {
   Element* enclosing_block_element =
       EnclosingBlock(PositionTemplate<Strategy>::FirstPositionInOrBeforeNode(
@@ skipping 1206 matching lines @@
         return InputType::kDeleteSoftLineBackward;
       if (granularity == kParagraphBoundary)
         return InputType::kDeleteHardLineBackward;
       return InputType::kDeleteContentBackward;
     default:
       return InputType::kNone;
   }
 }
 
 }  // namespace blink