Fixed some TODO comments so they wouldn't show up in the docs.

ppapi/api/pp_input_event.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 defines the API used to handle mouse and keyboard input events.
  */
 
 /**
@@ skipping 94 matching lines @@
    * This values represents the y coordinate of the mouse when the event
    * occurred.
    *
    * In most, but not all, cases these coordinates will just be integers.
    * For example, the plugin element might be arbitrarily scaled or transformed
    * in the DOM, and translating a mouse event into the coordinate space of the
    * plugin will give non-integer values.
    */
   float_t y;
 
-  // TODO(brettw) figure out exactly what this means.
+  /* TODO(brettw) figure out exactly what this means.*/
   int32_t click_count;
 };
 
 /**
  * The <code>PP_InputEvent_Wheel</code> struct represents all mouse wheel
  * events.
  */
 [assert_size(24)] struct PP_InputEvent_Wheel {
   /**
    * This value represents a combination of the <code>EVENT_MODIFIER</code>
@@ skipping 68 matching lines @@
   float_t wheel_ticks_y;
 
   /**
    * Indicates if the scroll <code>delta_x</code>/<code>delta_y</code>
    * indicates pages or lines to scroll by. When true, the user is requesting
    * to scroll by pages.
    */
   PP_Bool scroll_by_page;
 };