Modifies V8WrapperInstantiationScope::SecurityCheck to only call BindingSecurity::shouldAllowAccess…

Source/bindings/core/v8/V8DOMWrapper.cpp

Index: Source/bindings/core/v8/V8DOMWrapper.cpp
diff --git a/Source/bindings/core/v8/V8DOMWrapper.cpp b/Source/bindings/core/v8/V8DOMWrapper.cpp
index feedad6cec93ab07a5f39de2a73c13c5aae1168b..e4a7fa6ca27d1d62e4617e82e5f55bc93bba792e 100644
--- a/Source/bindings/core/v8/V8DOMWrapper.cpp
+++ b/Source/bindings/core/v8/V8DOMWrapper.cpp
@@ -136,7 +136,13 @@ void V8WrapperInstantiationScope::SecurityCheck(v8::Isolate* isolate, v8::Local<
         // If the context is different, we need to make sure that the current
         // context has access to the creation context.
         Frame* frame = toFrameIfNotDetached(contextForWrapper);
-        RELEASE_ASSERT(!frame || BindingSecurity::shouldAllowAccessToFrame(isolate, frame, DoNotReportSecurityError));
+        if (!frame)
+            return;
+        const DOMWrapperWorld& currentWorld = DOMWrapperWorld::world(m_context);
+        RELEASE_ASSERT(currentWorld.worldId() == DOMWrapperWorld::world(contextForWrapper).worldId());

[haraken, 2015/09/09 15:41:42]

Does this need to be RELEASE_ASSERT?

[epertoso, 2015/09/09 15:52:11]

I think it's a valid assumption.

+        if (currentWorld.isMainWorld()) {
+            RELEASE_ASSERT(BindingSecurity::shouldAllowAccessToFrame(isolate, frame, DoNotReportSecurityError));
+        }
     }
 }