bindings: Supports [LenientThis] extended attributes.

Source/bindings/core/v8/V8DOMConfiguration.h

 /*
  * Copyright (C) 2012 Google 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
@@ skipping 36 matching lines @@
     enum ExposeConfiguration {
         ExposedToAllScripts,
         OnlyExposedToPrivateScript,
     };
 
     enum InstanceOrPrototypeConfiguration {
         OnInstance,
         OnPrototype,
     };
 
+    enum HolderCheckConfiguration {
+        CheckHolder,
+        DoNotCheckHolder,
+    };
+
     // AttributeConfiguration translates into calls to SetAccessor() on either
     // the instance or the prototype ObjectTemplate, based on |instanceOrPrototypeConfiguration|.
     struct AttributeConfiguration {
         const char* const name;
         v8::AccessorNameGetterCallback getter;
         v8::AccessorNameSetterCallback setter;
         v8::AccessorNameGetterCallback getterForMainWorld;
         v8::AccessorNameSetterCallback setterForMainWorld;
         const WrapperTypeInfo* data;
         v8::AccessControl settings;
         v8::PropertyAttribute attribute;
-        ExposeConfiguration exposeConfiguration;
-        InstanceOrPrototypeConfiguration instanceOrPrototypeConfiguration;
+        unsigned exposeConfiguration : 1; // ExposeConfiguration
+        unsigned instanceOrPrototypeConfiguration : 1; // InstanceOrPrototypeConfiguration
     };
 
     static void installAttributes(v8::Isolate*, v8::Local<v8::ObjectTemplate> instanceTemplate, v8::Local<v8::ObjectTemplate> prototypeTemplate, const AttributeConfiguration*, size_t attributeCount);
 
     static void installAttribute(v8::Isolate*, v8::Local<v8::ObjectTemplate> instanceTemplate, v8::Local<v8::ObjectTemplate> prototypeTemplate, const AttributeConfiguration&);
 
     static void installAttribute(v8::Isolate*, v8::Local<v8::Object> instance, v8::Local<v8::Object> prototype, const AttributeConfiguration&);
 
     // AccessorConfiguration translates into calls to SetAccessorProperty()
     // on prototype ObjectTemplate.
     struct AccessorConfiguration {
         const char* const name;
         v8::FunctionCallback getter;
         v8::FunctionCallback setter;
         v8::FunctionCallback getterForMainWorld;
         v8::FunctionCallback setterForMainWorld;
         const WrapperTypeInfo* data;
         v8::AccessControl settings;
         v8::PropertyAttribute attribute;
-        ExposeConfiguration exposeConfiguration;
+        unsigned exposeConfiguration : 1; // ExposeConfiguration
+        unsigned holderCheckConfiguration : 1; // HolderCheckConfiguration
     };
 
     static void installAccessors(v8::Isolate*, v8::Local<v8::ObjectTemplate> prototypeTemplate, v8::Local<v8::Signature>, const AccessorConfiguration*, size_t accessorCount);
 
     static void installAccessor(v8::Isolate*, v8::Local<v8::ObjectTemplate> prototypeTemplate, v8::Local<v8::Signature>, const AccessorConfiguration&);
 
     static void installAccessor(v8::Isolate*, v8::Local<v8::Object> prototype, const AccessorConfiguration&);
 
     enum ConstantType {
         ConstantTypeShort,
@@ skipping 73 matching lines @@
         const AttributeConfiguration*, size_t attributeCount,
         const AccessorConfiguration*, size_t accessorCount,
         const MethodConfiguration*, size_t callbackCount);
 
     static v8::Local<v8::FunctionTemplate> domClassTemplate(v8::Isolate*, WrapperTypeInfo*, void (*)(v8::Local<v8::FunctionTemplate>, v8::Isolate*));
 };
 
 } // namespace blink
 
 #endif // V8DOMConfiguration_h