Support multiple interrupt requests in v8 API.

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 4984 matching lines @@
    *
    * This method can be used by any thread even if that thread has not
    * acquired the V8 lock with a Locker object.
    */
   void CancelTerminateExecution();
 
   /**
    * Request V8 to interrupt long running JavaScript code and invoke
    * the given |callback| passing the given |data| to it. After |callback|
    * returns control will be returned to the JavaScript code.
-   * At any given moment V8 can remember only a single callback for the very
-   * last interrupt request.
+   * There may be a number of interrupt requests in flight.
    * Can be called from another thread without acquiring a |Locker|.
    * Registered |callback| must not reenter interrupted Isolate.
    */
   void RequestInterrupt(InterruptCallback callback, void* data);
 
   /**
    * Clear interrupt request created by |RequestInterrupt|.
    * Can be called from another thread without acquiring a |Locker|.
    */
-  void ClearInterrupt();
+  V8_DEPRECATED("There's no way to clear interrupts in flight.",
+                void ClearInterrupt());
 
   /**
    * Request garbage collection in this Isolate. It is only valid to call this
    * function if --expose_gc was specified.
    *
    * This should only be used for testing purposes and not to enforce a garbage
    * collection schedule. It has strong negative impact on the garbage
    * collection performance. Use IdleNotification() or LowMemoryNotification()
    * instead to influence the garbage collection schedule.
    */
@@ skipping 2478 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_