bindings: Makes runtime-enabled attributes on prototype chains compilable.

Source/bindings/core/v8/V8DOMConfiguration.h

Index: Source/bindings/core/v8/V8DOMConfiguration.h
diff --git a/Source/bindings/core/v8/V8DOMConfiguration.h b/Source/bindings/core/v8/V8DOMConfiguration.h
index 42d85dcbecd53d7934f031b9d48289849b73708d..0af9a401b3d99c5b7356a08730a5f0ab5356adb0 100644
--- a/Source/bindings/core/v8/V8DOMConfiguration.h
+++ b/Source/bindings/core/v8/V8DOMConfiguration.h
@@ -177,6 +177,34 @@ public:
 
     static void installAccessors(v8::Isolate*, v8::Handle<v8::ObjectTemplate>, v8::Handle<v8::Signature>, const AccessorConfiguration*, size_t accessorCount);
 
+    template<class ObjectOrTemplate>
+    static inline void installAccessor(v8::Handle<ObjectOrTemplate> instanceTemplate, v8::Handle<ObjectOrTemplate> prototype, v8::Handle<v8::Signature> signature, const AccessorConfiguration& accessor, v8::Isolate* isolate)

[haraken, 2015/02/13 15:08:24]

We might not want to duplicate the code between installAccessor and
installAccessors. Can we update installAccessors to call installAccessor and
thus share the code?

[Yuki, 2015/02/16 10:51:51]

Refactored the code a bit.
Since it seemed that getting DOMWrapperWorld is not so cheap, I made a change to
keep it during for-loops.

Also installConstant seems misleading compared to installMethod, etc.  Thus I
renamed it to installConstantWithGetter.

+    {
+        DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
+        if (accessor.exposeConfiguration == OnlyExposedToPrivateScript && !world.isPrivateScriptIsolatedWorld())
+            return;
+
+        v8::FunctionCallback getterCallback = accessor.getter;
+        v8::FunctionCallback setterCallback = accessor.setter;
+        if (world.isMainWorld()) {
+            if (accessor.getterForMainWorld)
+                getterCallback = accessor.getterForMainWorld;
+            if (accessor.setterForMainWorld)
+                setterCallback = accessor.setterForMainWorld;
+        }
+        v8::Local<v8::FunctionTemplate> getter;
+        if (getterCallback) {
+            getter = v8::FunctionTemplate::New(isolate, getterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessor.data)), signature, 0);
+            getter->RemovePrototype();
+        }
+        v8::Local<v8::FunctionTemplate> setter;
+        if (setterCallback) {
+            setter = v8::FunctionTemplate::New(isolate, setterCallback, v8::External::New(isolate, const_cast<WrapperTypeInfo*>(accessor.data)), signature, 1);
+            setter->RemovePrototype();
+        }
+        prototype->SetAccessorProperty(v8AtomicString(isolate, accessor.name), getter, setter, accessor.attribute, accessor.settings);
+    }
+
     static v8::Local<v8::Signature> installDOMClassTemplate(v8::Isolate*, v8::Local<v8::FunctionTemplate>, const char* interfaceName, v8::Handle<v8::FunctionTemplate> parentClass, size_t fieldCount,
         const AttributeConfiguration*, size_t attributeCount,
         const AccessorConfiguration*, size_t accessorCount,