Removed unused NeedKey callback from Decryptors.

webkit/renderer/media/crypto/ppapi/clear_key_cdm.cc

 // Copyright 2013 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.
 
 #include "webkit/renderer/media/crypto/ppapi/clear_key_cdm.h"
 
 #include <algorithm>
 #include <sstream>
 #include <string>
 #include <vector>
@@ skipping 163 matching lines @@
 
 void ClearKeyCdm::Client::KeyMessage(const std::string& session_id,
                                      const std::string& message,
                                      const std::string& default_url) {
   status_ = kKeyMessage;
   session_id_ = session_id;
   key_message_ = message;
   default_url_ = default_url;
 }
 
-void ClearKeyCdm::Client::NeedKey(const std::string& session_id,
-                                  const std::string& type,
-                                  scoped_ptr<uint8[]> init_data,
-                                  int init_data_length) {
-  // In the current implementation of AesDecryptor, NeedKey is not used.
-  // If no key is available to decrypt an input buffer, it returns kNoKey to
-  // the caller instead of firing NeedKey.
-  NOTREACHED();
-}
-
 ClearKeyCdm::ClearKeyCdm(cdm::Host* host)
     : decryptor_(base::Bind(&Client::KeyAdded, base::Unretained(&client_)),
                  base::Bind(&Client::KeyError, base::Unretained(&client_)),
-                 base::Bind(&Client::KeyMessage, base::Unretained(&client_)),
-                 base::Bind(&Client::NeedKey, base::Unretained(&client_))),
+                 base::Bind(&Client::KeyMessage, base::Unretained(&client_))),
       host_(host),
       timer_delay_ms_(kInitialTimerDelayMs),
       timer_set_(false) {
 #if defined(CLEAR_KEY_CDM_USE_FAKE_AUDIO_DECODER)
   channel_count_ = 0;
   bits_per_channel_ = 0;
   samples_per_second_ = 0;
   output_timestamp_base_in_microseconds_ = kNoTimestamp;
   total_samples_generated_ = 0;
 #endif  // CLEAR_KEY_CDM_USE_FAKE_AUDIO_DECODER
@@ skipping 350 matching lines @@
   int samples_generated = GenerateFakeAudioFramesFromDuration(
       timestamp_in_microseconds - CurrentTimeStampInMicroseconds(),
       audio_frames);
   total_samples_generated_ += samples_generated;
 
   return samples_generated == 0 ? cdm::kNeedMoreData : cdm::kSuccess;
 }
 #endif  // CLEAR_KEY_CDM_USE_FAKE_AUDIO_DECODER
 
 }  // namespace webkit_media