Add API for adding and removing CallCompletedCallbacks to Isolate

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index f0dd0e13488ed4d2fc602d50b43e0220f192da44..b1ec504031cdf0fdf2401734caedd6327044d6c1 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4428,6 +4428,20 @@ class V8_EXPORT Isolate {
    */
   void SetEventLogger(LogEventCallback that);
 
+  /**
+   * Adds a callback to notify the host application when a script finished
+   * running.  If a script re-enters the runtime during executing, the
+   * CallCompletedCallback is only invoked when the outer-most script
+   * execution ends.  Executing scripts inside the callback do not trigger
+   * further callbacks.
+   */
+  void AddCallCompletedCallback(CallCompletedCallback callback);
+
+  /**
+   * Removes callback that was installed by AddCallCompletedCallback.
+   */
+  void RemoveCallCompletedCallback(CallCompletedCallback callback);
+
  private:
   template<class K, class V, class Traits> friend class PersistentValueMap;
 
@@ -4795,11 +4809,15 @@ class V8_EXPORT V8 {
    * CallCompletedCallback is only invoked when the outer-most script
    * execution ends.  Executing scripts inside the callback do not trigger
    * further callbacks.
+   *
+   * Will be deprecated soon. Use Isolate::AddCallCompletedCallback.
    */
   static void AddCallCompletedCallback(CallCompletedCallback callback);
 
   /**
    * Removes callback that was installed by AddCallCompletedCallback.
+   *
+   * Will be deprecated soon. Use Isolate::RemoveCallCompletedCallback.
    */
   static void RemoveCallCompletedCallback(CallCompletedCallback callback);