Replace OVERRIDE and FINAL with their C++11 counterparts in WTF

Source/wtf/Compiler.h

 /*
  * Copyright (C) 2011, 2012 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 39 matching lines @@
    in the presence of move constructors and/or move assignment operators. This bug has been fixed in Xcode 4.3 clang, so we
    check for both cxx_rvalue_references as well as the unrelated cxx_nonstatic_member_init feature which we know was added in 4.3 */
 #define WTF_COMPILER_SUPPORTS_CXX_RVALUE_REFERENCES __has_extension(cxx_rvalue_references) && __has_extension(cxx_nonstatic_member_init)
 
 #define WTF_COMPILER_SUPPORTS_CXX_DELETED_FUNCTIONS __has_extension(cxx_deleted_functions)
 #define WTF_COMPILER_SUPPORTS_CXX_NULLPTR __has_feature(cxx_nullptr)
 #define WTF_COMPILER_SUPPORTS_CXX_EXPLICIT_CONVERSIONS __has_feature(cxx_explicit_conversions)
 #define WTF_COMPILER_SUPPORTS_BLOCKS __has_feature(blocks)
 #define WTF_COMPILER_SUPPORTS_C_STATIC_ASSERT __has_extension(c_static_assert)
 #define WTF_COMPILER_SUPPORTS_CXX_STATIC_ASSERT __has_extension(cxx_static_assert)
-#define WTF_COMPILER_SUPPORTS_CXX_OVERRIDE_CONTROL __has_extension(cxx_override_control)
 #define WTF_COMPILER_SUPPORTS_HAS_TRIVIAL_DESTRUCTOR __has_extension(has_trivial_destructor)
 #define WTF_COMPILER_SUPPORTS_CXX_STRONG_ENUMS __has_extension(cxx_strong_enums)
 
 #endif
 
 #ifndef CLANG_PRAGMA
 #define CLANG_PRAGMA(PRAGMA)
 #endif
 
 /* COMPILER(MSVC) - Microsoft Visual C++ */
 #if defined(_MSC_VER)
 #define WTF_COMPILER_MSVC 1
 
 /* Specific compiler features */
 #if !COMPILER(CLANG) && _MSC_VER >= 1600
 #define WTF_COMPILER_SUPPORTS_CXX_NULLPTR 1
 #endif
 
 #if COMPILER(CLANG)
 /* Keep strong enums turned off when building with clang-cl: We cannot yet build all of Blink without fallback to cl.exe, and strong enums are exposed at ABI boundaries. */
 #undef WTF_COMPILER_SUPPORTS_CXX_STRONG_ENUMS
-#else
-#define WTF_COMPILER_SUPPORTS_CXX_OVERRIDE_CONTROL 1
 #endif
 
 #endif
 
 /* COMPILER(GCC) - GNU Compiler Collection */
 #if defined(__GNUC__)
 #define WTF_COMPILER_GCC 1
 #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
 #define GCC_VERSION_AT_LEAST(major, minor, patch) (GCC_VERSION >= (major * 10000 + minor * 100 + patch))
 #else
@@ skipping 18 matching lines @@
 #define WTF_COMPILER_SUPPORTS_CXX_DELETED_FUNCTIONS 1
 #endif
 #if GCC_VERSION_AT_LEAST(4, 5, 0)
 #define WTF_COMPILER_SUPPORTS_CXX_EXPLICIT_CONVERSIONS 1
 #endif
 #if GCC_VERSION_AT_LEAST(4, 6, 0)
 #define WTF_COMPILER_SUPPORTS_CXX_NULLPTR 1
 /* Strong enums should work from gcc 4.4, but doesn't seem to support some operators */
 #define WTF_COMPILER_SUPPORTS_CXX_STRONG_ENUMS 1
 #endif
-#if GCC_VERSION_AT_LEAST(4, 7, 0)
-#define WTF_COMPILER_SUPPORTS_CXX_OVERRIDE_CONTROL 1
-#endif
 #endif /* defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(__cplusplus) && __cplusplus >= 201103L) */
 #endif /* COMPILER(GCC) */
 
 /* ==== Compiler features ==== */
 
 
 /* ALWAYS_INLINE */
 
 #ifndef ALWAYS_INLINE
 #if COMPILER(GCC) && defined(NDEBUG) && !COMPILER(MINGW)
@@ skipping 66 matching lines @@
 /* ALLOW_UNUSED */
 
 #if COMPILER(GCC)
 #define ALLOW_UNUSED __attribute__((unused))
 #else
 #define ALLOW_UNUSED
 #endif
 
 /* OVERRIDE and FINAL */
 
-#if COMPILER_SUPPORTS(CXX_OVERRIDE_CONTROL)
 #define OVERRIDE override
 #define FINAL final
-#else
-#define OVERRIDE
-#define FINAL

[Nico, 2014/09/25 19:32:38]

nit: This seems kind of independent of the mechanical part of the rest of this
CL; I would've done this in a separate CL.

-#endif
 
 /* WTF_DELETED_FUNCTION */
 
 #if COMPILER_SUPPORTS(CXX_DELETED_FUNCTIONS)
 #define WTF_DELETED_FUNCTION = delete
 #else
 #define WTF_DELETED_FUNCTION
 #endif
 
 /* REFERENCED_FROM_ASM */
@@ skipping 22 matching lines @@
 #define WTF_COMPILER_SUPPORTS_PRETTY_FUNCTION 1
 #define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__
 #elif COMPILER(MSVC)
 #define WTF_COMPILER_SUPPORTS_PRETTY_FUNCTION 1
 #define WTF_PRETTY_FUNCTION __FUNCSIG__
 #else
 #define WTF_PRETTY_FUNCTION __FUNCTION__
 #endif
 
 #endif /* WTF_Compiler_h */