Improve spelling of "notification".

media/audio/cras/cras_input.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 MEDIA_AUDIO_CRAS_CRAS_INPUT_H_
 #define MEDIA_AUDIO_CRAS_CRAS_INPUT_H_
 
 #include <cras_client.h>
 
 #include <string>
@@ skipping 33 matching lines @@
  private:
   // Handles requests to get samples from the provided buffer.  This will be
   // called by the audio server when it has samples ready.
   static int SamplesReady(cras_client* client,
                           cras_stream_id_t stream_id,
                           uint8* samples,
                           size_t frames,
                           const timespec* sample_ts,
                           void* arg);
 
-  // Handles notificaiton that there was an error with the playback stream.
+  // Handles notification that there was an error with the playback stream.
   static int StreamError(cras_client* client,
                          cras_stream_id_t stream_id,
                          int err,
                          void* arg);
 
   // Reads one or more buffers of audio from the device, passes on to the
   // registered callback. Called from SamplesReady().
   void ReadAudio(size_t frames, uint8* buffer, const timespec* sample_ts);
 
   // Deals with an error that occured in the stream.  Called from StreamError().
@@ skipping 32 matching lines @@
 
   // Direction of the stream.
   const CRAS_STREAM_DIRECTION stream_direction_;
 
   DISALLOW_COPY_AND_ASSIGN(CrasInputStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_CRAS_CRAS_INPUT_H_