Drop GetCurrentThreadId() and TerminateExecution(int) from the external API.

include/v8.h

 // Copyright 2012 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4574 matching lines @@
    */
   static void SetJitCodeEventHandler(JitCodeEventOptions options,
                                      JitCodeEventHandler event_handler);
 
   // TODO(svenpanne) Really deprecate me when Chrome is fixed.
   /** Deprecated. Use Isolate::AdjustAmountOfExternalAllocatedMemory instead. */
   static intptr_t AdjustAmountOfExternalAllocatedMemory(
       intptr_t change_in_bytes);
 
   /**
-   * Retrieve the V8 thread id of the calling thread.
-   *
-   * The thread id for a thread should only be retrieved after the V8
-   * lock has been acquired with a Locker object with that thread.
-   */
-  static int GetCurrentThreadId();
-
-  /**
-   * Forcefully terminate execution of a JavaScript thread.  This can
-   * be used to terminate long-running scripts.
-   *
-   * TerminateExecution should only be called when then V8 lock has
-   * been acquired with a Locker object.  Therefore, in order to be
-   * able to terminate long-running threads, preemption must be
-   * enabled to allow the user of TerminateExecution to acquire the
-   * lock.
-   *
-   * The termination is achieved by throwing an exception that is
-   * uncatchable by JavaScript exception handlers.  Termination
-   * exceptions act as if they were caught by a C++ TryCatch exception
-   * handler.  If forceful termination is used, any C++ TryCatch
-   * exception handler that catches an exception should check if that
-   * exception is a termination exception and immediately return if
-   * that is the case.  Returning immediately in that case will
-   * continue the propagation of the termination exception if needed.
-   *
-   * The thread id passed to TerminateExecution must have been
-   * obtained by calling GetCurrentThreadId on the thread in question.
-   *
-   * \param thread_id The thread id of the thread to terminate.
-   */
-  static void TerminateExecution(int thread_id);
-
-  /**
    * Forcefully terminate the current thread of JavaScript execution
    * in the given isolate. If no isolate is provided, the default
    * isolate is used.
    *
    * This method can be used by any thread even if that thread has not
    * acquired the V8 lock with a Locker object.
    *
    * \param isolate The isolate in which to terminate the current JS execution.
    */
   static void TerminateExecution(Isolate* isolate = NULL);
@@ skipping 1895 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_