Add is_encrypted() in VideoDecoderConfig.

media/filters/source_buffer_stream.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/source_buffer_stream.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/bind.h"
@@ skipping 922 matching lines @@
   audio_configs_.resize(audio_configs_.size() + 1);
   audio_configs_[append_config_index_] = new AudioDecoderConfig();
   audio_configs_[append_config_index_]->CopyFrom(config);
   return true;
 }
 
 bool SourceBufferStream::UpdateVideoConfig(const VideoDecoderConfig& config) {
   DCHECK(!video_configs_.empty());
   DCHECK(audio_configs_.empty());
 
+  if (video_configs_[0]->is_encrypted() != config.is_encrypted()) {
+    DVLOG(1) << "UpdateVideoConfig() : Encryption changes not allowed.";
+    return false;
+  }
+
   if (video_configs_[0]->codec() != config.codec()) {
     DVLOG(1) << "UpdateVideoConfig() : Codec changes not allowed.";
     return false;
   }
 
   // Check to see if the new config matches an existing one.
   for (size_t i = 0; i < video_configs_.size(); ++i) {
     if (config.Matches(*video_configs_[i])) {
       append_config_index_ = i;
       return true;
@@ skipping 462 matching lines @@
   return 2 * GetApproximateDuration();
 }
 
 base::TimeDelta SourceBufferRange::GetApproximateDuration() const {
   base::TimeDelta max_interbuffer_distance = interbuffer_distance_cb_.Run();
   DCHECK(max_interbuffer_distance != kNoTimestamp());
   return max_interbuffer_distance;
 }
 
 }  // namespace media