Make ETextModify an enum class.

third_party/WebKit/Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 548 matching lines @@
                                                             : EOrder::kLogical);
   document_style->SetZoom(
       frame && !document.Printing() ? frame->PageZoomFactor() : 1);
   FontDescription document_font_description =
       document_style->GetFontDescription();
   document_font_description.SetLocale(
       LayoutLocale::Get(document.ContentLanguage()));
   document_style->SetFontDescription(document_font_description);
   document_style->SetZIndex(0);
   document_style->SetIsStackingContext(true);
-  document_style->SetUserModify(document.InDesignMode() ? READ_WRITE
-                                                        : READ_ONLY);
+  document_style->SetUserModify(document.InDesignMode()
+                                    ? EUserModify::kReadWrite
+                                    : EUserModify::kReadOnly);
   // These are designed to match the user-agent stylesheet values for the
   // document element so that the common case doesn't need to create a new
   // ComputedStyle in Document::InheritHtmlAndBodyElementStyles.
   document_style->SetDisplay(EDisplay::kBlock);
   document_style->SetPosition(EPosition::kAbsolute);
 
   // Document::InheritHtmlAndBodyElementStyles will set the final overflow
   // style values, but they should initially be auto to avoid premature
   // scrollbar removal in PaintLayerScrollableArea::UpdateAfterStyleChange.
   document_style->SetOverflowX(EOverflow::kAuto);
@@ skipping 1120 matching lines @@
     // earlier style object built using the same exact style declarations. We
     // then only need to apply the inherited properties, if any, as their values
     // can depend on the element context. This is fast and saves memory by
     // reusing the style data structures.
     state.Style()->CopyNonInheritedFromCached(
         *cached_matched_properties->computed_style);
     if (state.ParentStyle()->InheritedDataShared(
             *cached_matched_properties->parent_computed_style) &&
         !IsAtShadowBoundary(element) &&
         (!state.DistributedToInsertionPoint() ||
-         state.Style()->UserModify() == READ_ONLY)) {
+         state.Style()->UserModify() == EUserModify::kReadOnly)) {
       INCREMENT_STYLE_STATS_COUNTER(GetDocument().GetStyleEngine(),
                                     matched_property_cache_inherited_hit, 1);
 
       EInsideLink link_status = state.Style()->InsideLink();
       // If the cache item parent style has identical inherited properties to
       // the current parent style then the resulting style will be identical
       // too. We copy the inherited properties over from the cache and are done.
       state.Style()->InheritFrom(*cached_matched_properties->computed_style);
 
       // Unfortunately the link status is treated like an inherited property. We
@@ skipping 312 matching lines @@
 
 DEFINE_TRACE(StyleResolver) {
   visitor->Trace(matched_properties_cache_);
   visitor->Trace(selector_filter_);
   visitor->Trace(style_sharing_lists_);
   visitor->Trace(document_);
   visitor->Trace(tracker_);
 }
 
 }  // namespace blink