Re-land 714393002 after fixing android build.

sky/engine/wtf/EnumClass.h

Index: sky/engine/wtf/EnumClass.h
diff --git a/sky/engine/wtf/EnumClass.h b/sky/engine/wtf/EnumClass.h
index 33e3884d19d637c6b9bd89018f1dd8efbab5311f..4fda5a779eff0d356dabd12eb144ab1edfe0e512 100644
--- a/sky/engine/wtf/EnumClass.h
+++ b/sky/engine/wtf/EnumClass.h
@@ -53,82 +53,12 @@ namespace WTF {
 // The ENUM_CLASS macros will use C++11's enum class if the compiler supports it.
 // Otherwise, it will use the EnumClass template below.
 
-#if COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
 
 #define ENUM_CLASS(__enumName) \
     enum class __enumName
 
 #define ENUM_CLASS_END(__enumName)
 
-#else // !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
-
-// How to define a type safe enum list using the EnumClass template?
-// ================================================================
-// Definition should be a struct that encapsulates an enum list.
-// The enum list should be names Enums.
-//
-// Here's an example of how to define a type safe enum named MyEnum using
-// the EnumClass template:
-//
-//     struct MyEnumDefinition {
-//         enum Enums {
-//             ValueDefault,
-//             Value1,
-//             ...
-//             ValueN
-//         };
-//     };
-//     typedef EnumClass<MyEnumDefinition, MyEnumDefinition::ValueDefault> MyEnum;
-//
-// With that, you can now use MyEnum enum values as follow:
-//
-//     MyEnum value1; // value1 is assigned MyEnum::ValueDefault by default.
-//     MyEnum value2 = MyEnum::Value1; // value2 is assigned MyEnum::Value1;
-
-template <typename Definition>
-class EnumClass : public Definition {
-    typedef enum Definition::Enums Value;
-public:
-    ALWAYS_INLINE EnumClass() { }
-    ALWAYS_INLINE EnumClass(Value value) : m_value(value) { }
-
-    ALWAYS_INLINE Value value() const { return m_value; }
-
-    ALWAYS_INLINE bool operator==(const EnumClass other) { return m_value == other.m_value; }
-    ALWAYS_INLINE bool operator!=(const EnumClass other) { return m_value != other.m_value; }
-    ALWAYS_INLINE bool operator<(const EnumClass other) { return m_value < other.m_value; }
-    ALWAYS_INLINE bool operator<=(const EnumClass other) { return m_value <= other.m_value; }
-    ALWAYS_INLINE bool operator>(const EnumClass other) { return m_value > other.m_value; }
-    ALWAYS_INLINE bool operator>=(const EnumClass other) { return m_value >= other.m_value; }
-
-    ALWAYS_INLINE bool operator==(const Value value) { return m_value == value; }
-    ALWAYS_INLINE bool operator!=(const Value value) { return m_value != value; }
-    ALWAYS_INLINE bool operator<(const Value value) { return m_value < value; }
-    ALWAYS_INLINE bool operator<=(const Value value) { return m_value <= value; }
-    ALWAYS_INLINE bool operator>(const Value value) { return m_value > value; }
-    ALWAYS_INLINE bool operator>=(const Value value) { return m_value >= value; }
-
-    ALWAYS_INLINE operator Value() { return m_value; }
-
-private:
-    Value m_value;
-};
-
-#define ENUM_CLASS(__enumName) \
-    struct __enumName ## Definition { \
-        enum Enums
-
-#define ENUM_CLASS_END(__enumName) \
-        ; \
-    }; \
-    typedef EnumClass< __enumName ## Definition > __enumName
-
-#endif // !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
-
 } // namespace WTF
 
-#if !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
-using WTF::EnumClass;
-#endif
-
 #endif // WTF_EnumClass_h