Pass DecryptConfig parameters over IPC and use it in AVDA.

media/base/decrypt_config.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/base/decrypt_config.h"
 
 #include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
 
 namespace media {
 
 DecryptConfig::DecryptConfig(const std::string& key_id,
                              const std::string& iv,
                              const std::vector<SubsampleEntry>& subsamples)
     : key_id_(key_id),
       iv_(iv),
       subsamples_(subsamples) {
   CHECK_GT(key_id.size(), 0u);
@@ skipping 12 matching lines @@
   for (size_t i = 0; i < subsamples().size(); ++i) {
     if ((subsamples()[i].clear_bytes != config.subsamples()[i].clear_bytes) ||
         (subsamples()[i].cypher_bytes != config.subsamples()[i].cypher_bytes)) {
       return false;
     }
   }
 
   return true;
 }
 
+std::ostream& DecryptConfig::Print(std::ostream& os) const {
+  os << "key_id:'" << base::HexEncode(key_id_.data(), key_id_.size()) << "'"
+     << " iv:'" << base::HexEncode(iv_.data(), iv_.size()) << "'";
+
+  os << " subsamples:[";
+  for (const SubsampleEntry& entry : subsamples_) {
+    os << "(clear:" << entry.clear_bytes << ", cypher:" << entry.cypher_bytes
+       << ")";
+  }
+  os << "]";
+  return os;
+}
+
 }  // namespace media