Add an ASSERT about cross-world wrapper leakage into ScriptValue

Source/bindings/v8/custom/V8InjectedScriptHostCustom.cpp

 /*
  * Copyright (C) 2007-2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 46 matching lines @@
 #include "core/events/EventTarget.h"
 #include "core/frame/DOMWindow.h"
 #include "core/inspector/InjectedScript.h"
 #include "core/inspector/InjectedScriptHost.h"
 #include "core/inspector/InspectorDOMAgent.h"
 #include "modules/webdatabase/Database.h"
 #include "platform/JSONValues.h"
 
 namespace WebCore {
 
-Node* InjectedScriptHost::scriptValueAsNode(ScriptValue value)
+Node* InjectedScriptHost::scriptValueAsNode(ScriptState* scriptState, ScriptValue value)
 {
-    v8::HandleScope scope(value.isolate());
+    ScriptState::Scope scope(scriptState);
     if (!value.isObject() || value.isNull())
         return 0;
     return V8Node::toNative(v8::Handle<v8::Object>::Cast(value.v8Value()));
 }
 
 ScriptValue InjectedScriptHost::nodeAsScriptValue(ScriptState* scriptState, Node* node)
 {
     ScriptState::Scope scope(scriptState);
     v8::Isolate* isolate = scriptState->isolate();
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "nodeAsScriptValue", "InjectedScriptHost", scriptState->context()->Global(), isolate);
@@ skipping 358 matching lines @@
     OwnPtr<v8::Handle<v8::Value>[]> argv = adoptArrayPtr(new v8::Handle<v8::Value>[argc]);
     for (size_t i = 0; i < argc; ++i)
         argv[i] = info[i + 2];
 
     v8::Local<v8::Value> result = function->Call(receiver, argc, argv.get());
     debugServer.unmuteWarningsAndDeprecations();
     v8SetReturnValue(info, result);
 }
 
 } // namespace WebCore