Blink-in-JS: Implement internal APIs exposed only to private scripts

Source/bindings/core/v8/V8DOMConfiguration.cpp

Index: Source/bindings/core/v8/V8DOMConfiguration.cpp
diff --git a/Source/bindings/core/v8/V8DOMConfiguration.cpp b/Source/bindings/core/v8/V8DOMConfiguration.cpp
index 33d4e8aca01b103e71b30c02bf1a5d370a7970e0..a27f8525427c0b3cb460bccf410a5031700896b1 100644
--- a/Source/bindings/core/v8/V8DOMConfiguration.cpp
+++ b/Source/bindings/core/v8/V8DOMConfiguration.cpp
@@ -42,11 +42,14 @@ void V8DOMConfiguration::installAttributes(v8::Handle<v8::ObjectTemplate> instan
 
 void V8DOMConfiguration::installAccessors(v8::Handle<v8::ObjectTemplate> prototype, v8::Handle<v8::Signature> signature, const AccessorConfiguration* accessors, size_t accessorCount, v8::Isolate* isolate)
 {
-    bool isMainWorld = DOMWrapperWorld::current(isolate).isMainWorld();
+    DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
     for (size_t i = 0; i < accessorCount; ++i) {
+        if (accessors[i].exposeConfiguration == OnlyExposedToPrivateScript && !world.isPrivateScriptIsolatedWorld())
+            continue;
+
         v8::FunctionCallback getterCallback = accessors[i].getter;
         v8::FunctionCallback setterCallback = accessors[i].setter;
-        if (isMainWorld) {
+        if (world.isMainWorld()) {
             if (accessors[i].getterForMainWorld)
                 getterCallback = accessors[i].getterForMainWorld;
             if (accessors[i].setterForMainWorld)
@@ -100,10 +103,13 @@ void V8DOMConfiguration::installConstants(v8::Handle<v8::FunctionTemplate> funct
 
 void V8DOMConfiguration::installMethods(v8::Handle<v8::ObjectTemplate> prototype, v8::Handle<v8::Signature> signature, v8::PropertyAttribute attributes, const MethodConfiguration* callbacks, size_t callbackCount, v8::Isolate* isolate)
 {
-    bool isMainWorld = DOMWrapperWorld::current(isolate).isMainWorld();
+    DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
     for (size_t i = 0; i < callbackCount; ++i) {
+        if (callbacks[i].exposeConfiguration == OnlyExposedToPrivateScript && !world.isPrivateScriptIsolatedWorld())
+            continue;
+
         v8::FunctionCallback callback = callbacks[i].callback;
-        if (isMainWorld && callbacks[i].callbackForMainWorld)
+        if (world.isMainWorld() && callbacks[i].callbackForMainWorld)
             callback = callbacks[i].callbackForMainWorld;
         v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, callback, v8Undefined(), signature, callbacks[i].length);
         functionTemplate->RemovePrototype();