Introduce an api to query the microtask autorun state of an isolate

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 4371 matching lines @@
    * Experimental: Enqueues the callback to the Microtask Work Queue
    */
   void EnqueueMicrotask(Handle<Function> microtask);
 
    /**
    * Experimental: Controls whether the Microtask Work Queue is automatically
    * run when the script call depth decrements to zero.
    */
   void SetAutorunMicrotasks(bool autorun);
 
+  /**
+   * Experimental: Returns whether the Microtask Work Queue is automatically
+   * run when the script call depth decrements to zero.
+   */
+  bool WillAutorunMicrotasks() const;
+
  private:
   template<class K, class V, class Traits> friend class PersistentValueMap;
 
   Isolate();
   Isolate(const Isolate&);
   ~Isolate();
   Isolate& operator=(const Isolate&);
   void* operator new(size_t size);
   void operator delete(void*, size_t);
 
@@ skipping 2221 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_