[Chromecast] Change DecryptContext::Decrypt back

chromecast/media/base/decrypt_context_impl.cc

 // Copyright 2014 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 "chromecast/media/base/decrypt_context_impl.h"
 
+#include <vector>
+
+#include "chromecast/public/media/cast_decoder_buffer.h"
+
 namespace chromecast {
 namespace media {
 
 DecryptContextImpl::DecryptContextImpl(CastKeySystem key_system)
     : key_system_(key_system) {}
 
 DecryptContextImpl::~DecryptContextImpl() {}
 
 CastKeySystem DecryptContextImpl::GetKeySystem() {
   return key_system_;
 }
 
+bool DecryptContextImpl::Decrypt(CastDecoderBuffer* buffer,
+                                 std::vector<uint8_t>* output) {
+  output->resize(buffer->data_size());
+  return Decrypt(buffer, output->data());
+}
+
 bool DecryptContextImpl::Decrypt(CastDecoderBuffer* buffer, uint8_t* output) {
   return false;
 }
 
 bool DecryptContextImpl::CanDecryptToBuffer() const {
   return false;
 }
 
 }  // namespace media
 }  // namespace chromecast