Add CDM FileIO tests.

media/cdm/ppapi/cdm_adapter.cc

 // Copyright 2013 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/cdm/ppapi/cdm_adapter.h"
 
+#include "media/cdm/ppapi/cdm_file_io_impl.h"
 #include "media/cdm/ppapi/cdm_helpers.h"
 #include "media/cdm/ppapi/supported_cdm_versions.h"
 
 #if defined(CHECK_DOCUMENT_URL)
 #include "ppapi/cpp/dev/url_util_dev.h"
 #include "ppapi/cpp/instance_handle.h"
 #endif  // defined(CHECK_DOCUMENT_URL)
 
 namespace {
 
@@ skipping 844 matching lines @@
           callback_factory_.NewCallback(&CdmAdapter::DecoderInitializeDone,
                                         PP_DECRYPTORSTREAMTYPE_VIDEO,
                                         deferred_video_decoder_config_id_,
                                         decoder_status == cdm::kSuccess));
       deferred_initialize_video_decoder_ = false;
       deferred_video_decoder_config_id_ = 0;
       break;
   }
 }
 
+cdm::CdmFileIO* CdmAdapter::GetCdmFileIO(cdm::CdmFileIOClient* client) {
+  // The CDM owns this object and must call CdmFileIO::Close() to release it.

[ddorwin, 2013/12/04 05:27:08]

s/this/the returned/
And move to a function-level comment.

[xhwang, 2013/12/10 01:24:25]

Done.

+  return new CdmFileIOImpl(client, pp_instance());
+}
+
 #if defined(OS_CHROMEOS)
 void CdmAdapter::SendPlatformChallengeDone(int32_t result) {
   challenge_in_progress_ = false;
 
   if (result != PP_OK) {
     cdm::PlatformChallengeResponse response = {};
     cdm_->OnPlatformChallengeResponse(response);
     return;
   }
 
@@ skipping 96 matching lines @@
 }  // namespace media
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new media::CdmAdapterModule();
 }
 
 }  // namespace pp