media: Pass SetCdmReadyCB in {Audio|Video}Decoder::Initialize().

media/filters/decrypting_audio_decoder.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/filters/decrypting_audio_decoder.h"
 
 #include <cstdlib>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 16 matching lines @@
   // Out of sync of 100ms would be pretty noticeable and we should keep any
   // drift below that.
   const int64 kOutOfSyncThresholdInMilliseconds = 100;
   return std::abs(timestamp_1.InMilliseconds() - timestamp_2.InMilliseconds()) >
          kOutOfSyncThresholdInMilliseconds;
 }
 
 DecryptingAudioDecoder::DecryptingAudioDecoder(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
     const scoped_refptr<MediaLog>& media_log,
-    const SetCdmReadyCB& set_cdm_ready_cb,
     const base::Closure& waiting_for_decryption_key_cb)
     : task_runner_(task_runner),
       media_log_(media_log),
       state_(kUninitialized),
       waiting_for_decryption_key_cb_(waiting_for_decryption_key_cb),
-      set_cdm_ready_cb_(set_cdm_ready_cb),
       decryptor_(NULL),
       key_added_while_decode_pending_(false),
       weak_factory_(this) {}
 
 std::string DecryptingAudioDecoder::GetDisplayName() const {
   return "DecryptingAudioDecoder";
 }
 
 void DecryptingAudioDecoder::Initialize(const AudioDecoderConfig& config,
+                                        const SetCdmReadyCB& set_cdm_ready_cb,
                                         const InitCB& init_cb,
                                         const OutputCB& output_cb) {
   DVLOG(2) << "Initialize()";
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(decode_cb_.is_null());
   DCHECK(reset_cb_.is_null());
 
   weak_this_ = weak_factory_.GetWeakPtr();
   init_cb_ = BindToCurrentLoop(init_cb);
   output_cb_ = BindToCurrentLoop(output_cb);
 
   if (!config.IsValidConfig()) {
     DLOG(ERROR) << "Invalid audio stream config.";
     base::ResetAndReturn(&init_cb_).Run(false);
     return;
   }
 
   // DecryptingAudioDecoder only accepts potentially encrypted stream.
   if (!config.is_encrypted()) {
     base::ResetAndReturn(&init_cb_).Run(false);
     return;
   }
 
   config_ = config;
 
   if (state_ == kUninitialized) {
+    DCHECK(!set_cdm_ready_cb.is_null());
     state_ = kDecryptorRequested;
+    set_cdm_ready_cb_ = set_cdm_ready_cb;
     set_cdm_ready_cb_.Run(BindToCurrentLoop(
         base::Bind(&DecryptingAudioDecoder::SetCdm, weak_this_)));
     return;
   }
 
   // Reinitialization (i.e. upon a config change)
   decryptor_->DeinitializeDecoder(Decryptor::kAudio);
   InitializeDecoder();
 }
 
@@ skipping 275 matching lines @@
     }
 
     frame->set_timestamp(current_time);
     timestamp_helper_->AddFrames(frame->frame_count());
 
     output_cb_.Run(frame);
   }
 }
 
 }  // namespace media