Implement callback when script finishes running in V8 API.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 53bad21c113e04d078f755cfbf8361f151e3875e..caea04410ad45062ccaf40ffe6fe2c0d0dcd1474 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -2635,6 +2635,9 @@ typedef void (*MemoryAllocationCallback)(ObjectSpace space,
                                          AllocationAction action,
                                          int size);
 
+// --- Leave Script Callback ---
+typedef void (*CallCompletedCallback)();
+
 // --- Failed Access Check Callback ---
 typedef void (*FailedAccessCheckCallback)(Local<Object> target,
                                           AccessType type,
@@ -3039,6 +3042,21 @@ class V8EXPORT V8 {
   static void RemoveMemoryAllocationCallback(MemoryAllocationCallback callback);
 
   /**
+   * 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.
+   */
+  static void AddCallCompletedCallback(CallCompletedCallback callback);
+
+  /**
+   * This function removes callback which was installed by

[danno, 2012/01/04 08:38:49]

Just: Removes callback that was installed by AddCallCompletedCallback function

+   * AddCallCompletedCallback function.
+   */
+  static void RemoveCallCompletedCallback(CallCompletedCallback callback);
+
+  /**
    * Allows the host application to group objects together. If one
    * object in the group is alive, all objects in the group are alive.
    * After each garbage collection, object groups are removed. It is