[NaCl SDK] A bunch of spelling fixes.

native_client_sdk/src/examples/hello_nacl_io/queue.h

 /* 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.
  */
 
 #ifndef QUEUE_H_
 #define QUEUE_H_
 
 /* This file implements a single-producer/single-consumer queue, using a mutex
  * and a condition variable.
  *
  * There are techniques to implement a queue like this without using memory
  * barriers or locks on x86, but ARM's memory system is different from x86, so
- * we cannot make the same assuptions about visibility order of writes. Using a
+ * we cannot make the same assumptions about visibility order of writes. Using a
  * mutex is slower, but also simpler.
  *
  * We make the assumption that messages are only enqueued on the main thread
  * and consumed on the worker thread. Because we don't want to block the main
  * thread, EnqueueMessage will return zero if the message could not be enqueued.
  *
  * DequeueMessage will block until a message is available using a condition
  * variable. Again, this may not be as fast as spin-waiting, but will consume
  * much less CPU (and battery), which is important to consider for ChromeOS
  * devices. */
 
 void InitializeMessageQueue();
 int EnqueueMessage(char* message);
 char* DequeueMessage();
 
 #endif  /* QUEUE_H_ */