Add move constructor and assignment operator to RefPtr class

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 34 matching lines @@
 
 /* Specific compiler features */
 #define WTF_COMPILER_SUPPORTS_CXX_VARIADIC_TEMPLATES __has_extension(cxx_variadic_templates)
 
 /* There is a bug in clang that comes with Xcode 4.2 where AtomicStrings can't be implicitly converted to Strings
    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_DEFAULTED_FUNCTIONS __has_extension(cxx_defaulted_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
@@ skipping 38 matching lines @@
 #endif
 #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(__cplusplus) && __cplusplus >= 201103L)
 /* C++11 support */
 #if GCC_VERSION_AT_LEAST(4, 3, 0)
 #define WTF_COMPILER_SUPPORTS_CXX_RVALUE_REFERENCES 1
 #define WTF_COMPILER_SUPPORTS_CXX_STATIC_ASSERT 1
 #define WTF_COMPILER_SUPPORTS_CXX_VARIADIC_TEMPLATES 1
 #endif
 #if GCC_VERSION_AT_LEAST(4, 4, 0)
 #define WTF_COMPILER_SUPPORTS_CXX_DELETED_FUNCTIONS 1
+#define WTF_COMPILER_SUPPORTS_CXX_DEFAULTED_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)
@@ skipping 127 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 __FUNCDNAME__
 #else
 #define WTF_PRETTY_FUNCTION __FUNCTION__
 #endif
 
 #endif /* WTF_Compiler_h */