Removed unused NeedKey callback from Decryptors.

media/crypto/aes_decryptor.cc

 // 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.
 
 #include "media/crypto/aes_decryptor.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 108 matching lines @@
   scoped_refptr<DecoderBuffer> output = DecoderBuffer::CopyFrom(
       reinterpret_cast<const uint8*>(sample), sample_size);
   CopySubsamples(subsamples, kDstContainsClearBytes,
                  reinterpret_cast<const uint8*>(decrypted_text.data()),
                  output->GetWritableData());
   return output;
 }
 
 AesDecryptor::AesDecryptor(const KeyAddedCB& key_added_cb,
                            const KeyErrorCB& key_error_cb,
-                           const KeyMessageCB& key_message_cb,
-                           const NeedKeyCB& need_key_cb)
+                           const KeyMessageCB& key_message_cb)
     : key_added_cb_(key_added_cb),
       key_error_cb_(key_error_cb),
-      key_message_cb_(key_message_cb),
-      need_key_cb_(need_key_cb) {
+      key_message_cb_(key_message_cb) {
 }
 
 AesDecryptor::~AesDecryptor() {
   STLDeleteValues(&key_map_);
 }
 
 bool AesDecryptor::GenerateKeyRequest(const std::string& type,
                                       const uint8* init_data,
                                       int init_data_length) {
   std::string session_id_string(base::UintToString(next_session_id_++));
@@ skipping 184 matching lines @@
 bool AesDecryptor::DecryptionKey::Init() {
   CHECK(!secret_.empty());
   decryption_key_.reset(crypto::SymmetricKey::Import(
       crypto::SymmetricKey::AES, secret_));
   if (!decryption_key_)
     return false;
   return true;
 }
 
 }  // namespace media