Make EIsolation an enum class.

third_party/WebKit/Source/core/style/ComputedStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1003 matching lines @@
   }
   RespectImageOrientationEnum RespectImageOrientation() const {
     return static_cast<RespectImageOrientationEnum>(
         RespectImageOrientationInternal());
   }
   void SetRespectImageOrientation(RespectImageOrientationEnum v) {
     SetRespectImageOrientationInternal(v);
   }
 
   // isolation
-  static EIsolation InitialIsolation() { return kIsolationAuto; }
+  static EIsolation InitialIsolation() { return EIsolation::kAuto; }
   EIsolation Isolation() const {
     return static_cast<EIsolation>(rare_non_inherited_data_->isolation_);
   }
   void SetIsolation(EIsolation v) {
-    rare_non_inherited_data_.Access()->isolation_ = v;
+    rare_non_inherited_data_.Access()->isolation_ = static_cast<unsigned>(v);
   }
 
   // -webkit-margin-before-collapse (aka -webkit-margin-top-collapse)
   static EMarginCollapse InitialMarginBeforeCollapse() {
     return kMarginCollapseCollapse;
   }
   EMarginCollapse MarginAfterCollapse() const {
     return static_cast<EMarginCollapse>(
         rare_non_inherited_data_->margin_after_collapse_);
   }
@@ skipping 1900 matching lines @@
   }
   bool IsDisplayBlockContainer() const {
     return IsDisplayBlockContainer(Display());
   }
   bool IsDisplayFlexibleOrGridBox() const {
     return IsDisplayFlexibleBox(Display()) || IsDisplayGridBox(Display());
   }
   bool IsDisplayFlexibleBox() const { return IsDisplayFlexibleBox(Display()); }
 
   // Isolation utility functions.
-  bool HasIsolation() const { return Isolation() != kIsolationAuto; }
+  bool HasIsolation() const { return Isolation() != EIsolation::kAuto; }
 
   // Content utility functions.
   bool HasContent() const { return GetContentData(); }
 
   // Cursor utility functions.
   CursorList* Cursors() const { return CursorDataInternal().Get(); }
   void AddCursor(StyleImage*,
                  bool hot_spot_specified,
                  const IntPoint& hot_spot = IntPoint());
   void SetCursorList(CursorList*);
@@ skipping 613 matching lines @@
       PseudoBitsInternal() | 1 << (pseudo - kFirstPublicPseudoId)));
 }
 
 inline bool ComputedStyle::HasPseudoElementStyle() const {
   return PseudoBitsInternal() & kElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h