Replace "nested message loop" with "nested run loop" in comments.

ppapi/api/private/ppb_flash_message_loop.idl

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * This file contains the <code>PPB_Flash_MessageLoop</code> interface.
  */
 
 label Chrome {
   M18 = 0.1
 };
 
 /**
  * The <code>PPB_Flash_MessageLoop</code> interface supports Pepper Flash to run
- * nested message loops.
+ * nested run loops.
  */
 interface PPB_Flash_MessageLoop {
   /**
    * Allocates a Flash message loop resource.
    *
    * @param[in] instance A <code>PP_Instance</code> identifying one instance
    * of a module.
    *
    * @return A <code>PP_Resource</code> that can be used to run a nested message
    * loop if successful; 0 if failed.
    */
   PP_Resource Create([in] PP_Instance instance);
 
   /**
    * Determines if a given resource is a Flash message loop.
    *
    * @param[in] resource A <code>PP_Resource</code> corresponding to a generic
    * resource.
    *
    * @return A <code>PP_Bool</code> that is <code>PP_TRUE</code> if the given
    * resource is a Flash message loop, otherwise <code>PP_FALSE</code>.
    */
   PP_Bool IsFlashMessageLoop([in] PP_Resource resource);
 
   /**
-   * Runs a nested message loop. The plugin will be reentered from this call.
+   * Runs a nested run loop. The plugin will be reentered from this call.
    * This function is used in places where Flash would normally enter a nested
    * message loop (e.g., when displaying context menus), but Pepper provides
    * only an asynchronous call. After performing that asynchronous call, call
    * <code>Run()</code>. In the callback, call <code>Quit()</code>.
    *
    * For a given message loop resource, only the first call to
-   * <code>Run()</code> will start a nested message loop. The subsequent calls
+   * <code>Run()</code> will start a nested run loop. The subsequent calls
    * will return <code>PP_ERROR_FAILED</code> immediately.
    *
    * @param[in] flash_message_loop The Flash message loop.
    *
    * @return <code>PP_ERROR_ABORTED</code> if the message loop quits because the
    * resource is destroyed; <code>PP_OK</code> if the message loop quits because
    * of other reasons (e.g., <code>Quit()</code> is called);
    * <code>PP_ERROR_FAILED</code> if this is not the first call to
    * <code>Run()</code>.
    */
   int32_t Run([in] PP_Resource flash_message_loop);
 
   /**
-   * Signals to quit the outermost nested message loop. Use this to exit and
+   * Signals to quit the outermost nested run loop. Use this to exit and
    * return back to the caller after you call <code>Run()</code>.
    *
    * If <code>Quit()</code> is not called to balance the call to
-   * <code>Run()</code>, the outermost nested message loop will be quitted
+   * <code>Run()</code>, the outermost nested run loop will be quitted
    * implicitly when the resource is destroyed.
    *
    * @param[in] flash_message_loop The Flash message loop.
    */
   void Quit([in] PP_Resource flash_message_loop);
-};
+};