Fix typo and remove undefined, unused API function from include/v8-debug.h

include/v8-debug.h

 // Copyright 2008 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 64 matching lines @@
   Exception = 2,
   NewFunction = 3,
   BeforeCompile = 4,
   AfterCompile  = 5
 };
 
 
 /**
  * Debug event callback function.
  *
- * \param event the debug event from which occoured (from the DebugEvent
- *              enumeration)
+ * \param event the type of the debug event that triggered the callback
+ *   (enum DebugEvent)
  * \param exec_state execution state (JavaScript object)
  * \param event_data event specific data (JavaScript object)
  * \param data value passed by the user to AddDebugEventListener
  */
 typedef void (*DebugEventCallback)(DebugEvent event,
                                    Handle<Object> exec_state,
                                    Handle<Object> event_data,
                                    Handle<Value> data);
 
 
@@ skipping 18 matching lines @@
   // Add a JavaScript debug event listener.
   static bool AddDebugEventListener(v8::Handle<v8::Function> that,
                                     Handle<Value> data = Handle<Value>());
 
   // Remove a C debug event listener.
   static void RemoveDebugEventListener(DebugEventCallback that);
 
   // Remove a JavaScript debug event listener.
   static void RemoveDebugEventListener(v8::Handle<v8::Function> that);
 
-  // Generate a stack dump.
-  static void StackDump();
-
   // Break execution of JavaScript.
   static void DebugBreak();
 
   // Message based interface. The message protocol is JSON.
   static void SetMessageHandler(DebugMessageHandler handler, void* data = NULL);
   static void SendCommand(const uint16_t* command, int length);
 };
 
 
 }  // namespace v8
 
 
 #undef EXPORT
 
 
 #endif  // V8_DEBUG_H_