[DevTools] Added public method for async execution of scripts

Source/bindings/core/v8/custom/V8WorkerGlobalScopeCustom.cpp

 /*
  * Copyright (C) 2009 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 43 matching lines @@
     if (argumentCount < 1)
         return;
 
     v8::Handle<v8::Value> function = info[0];
 
     WorkerScriptController* script = workerGlobalScope->script();
     if (!script)
         return;
 
     ScriptState* scriptState = ScriptState::current(info.GetIsolate());
-    OwnPtr<ScheduledAction> action;
+    OwnPtr<ScheduledActionBase> action;
     if (function->IsString()) {
         if (ContentSecurityPolicy* policy = workerGlobalScope->contentSecurityPolicy()) {
             if (!policy->allowEval()) {
                 v8SetReturnValue(info, 0);
                 return;
             }
         }
         action = adoptPtr(new ScheduledAction(scriptState, toCoreString(function.As<v8::String>()), KURL(), info.GetIsolate()));
     } else if (function->IsFunction()) {
         size_t paramCount = argumentCount >= 2 ? argumentCount - 2 : 0;
@@ skipping 39 matching lines @@
     WorkerScriptController* script = impl->script();
     if (!script)
         return v8::Null(isolate);
 
     v8::Handle<v8::Object> global = script->context()->Global();
     ASSERT(!global.IsEmpty());
     return global;
 }
 
 } // namespace blink