EME: Remove all references to `needkey` except the UMA name.

media/formats/webm/webm_stream_parser.h

 // Copyright 2014 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_FORMATS_WEBM_WEBM_STREAM_PARSER_H_
 #define MEDIA_FORMATS_WEBM_WEBM_STREAM_PARSER_H_
 
 #include <stdint.h>
 
 #include "base/callback_forward.h"
@@ skipping 47 matching lines @@
 
   // Incrementally parses WebM cluster elements. This method also skips
   // CUES elements if they are encountered since we currently don't use the
   // data in these elements.
   //
   // Returns < 0 if the parse fails.
   // Returns 0 if more data is needed.
   // Returning > 0 indicates success & the number of bytes parsed.
   int ParseCluster(const uint8_t* data, int size);
 
-  // Fire needkey event through the |encrypted_media_init_data_cb_|.
+  // Fire the encrypted event through the |encrypted_media_init_data_cb_|.
   void OnEncryptedMediaInitData(const std::string& key_id);
 
   State state_;
   InitCB init_cb_;
   NewConfigCB config_cb_;
   NewBuffersCB new_buffers_cb_;
   bool ignore_text_tracks_;
   EncryptedMediaInitDataCB encrypted_media_init_data_cb_;
 
   NewMediaSegmentCB new_segment_cb_;
   EndMediaSegmentCB end_of_segment_cb_;
   scoped_refptr<MediaLog> media_log_;
 
   bool unknown_segment_size_;
 
   scoped_ptr<WebMClusterParser> cluster_parser_;
   ByteQueue byte_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMStreamParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_WEBM_WEBM_STREAM_PARSER_H_