Implement Chromium side of MediaKeys.isTypeSupported().

chrome/renderer/media/chrome_key_systems.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 "chrome/renderer/media/chrome_key_systems.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/render_messages.h"
 #include "components/cdm/renderer/widevine_key_systems.h"
+#include "content/public/common/eme_codec.h"
+#include "content/public/common/eme_init_data_type.h"

[ddorwin, 2014/09/13 01:20:44]

Does it make sense to unify these? eme_constants.h?

[sandersd (OOO until July 31), 2014/09/22 23:45:52]

Done.

 #include "content/public/renderer/render_thread.h"
 
 #if defined(OS_ANDROID)
 #include "components/cdm/renderer/android_key_systems.h"
 #endif
 
 #include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
 
 // The following must be after widevine_cdm_version.h.
 
@@ skipping 45 matching lines @@
     return;
   }
 
   KeySystemInfo info(kExternalClearKeyKeySystem);
 
   info.supported_codecs = content::EME_CODEC_WEBM_ALL;
 #if defined(USE_PROPRIETARY_CODECS)
   info.supported_codecs |= content::EME_CODEC_MP4_ALL;
 #endif  // defined(USE_PROPRIETARY_CODECS)
 
+  info.supported_init_data_types = content::EME_INIT_DATA_TYPE_ALL;

[ddorwin, 2014/09/13 01:20:44]

We don't currently support keyids. How should we handle that?

[sandersd (OOO until July 31), 2014/09/22 23:45:52]

Done.

+
   info.pepper_type = kExternalClearKeyPepperType;
 
   concrete_key_systems->push_back(info);
 
   // Add support of decrypt-only mode in ClearKeyCdm.
   info.key_system = kExternalClearKeyDecryptOnlyKeySystem;
   concrete_key_systems->push_back(info);
 
   // A key system that triggers FileIO test in ClearKeyCdm.
   info.key_system = kExternalClearKeyFileIOTestKeySystem;
@@ skipping 91 matching lines @@
 
 #if defined(WIDEVINE_CDM_AVAILABLE)
   AddPepperBasedWidevine(key_systems_info);
 #endif  // defined(WIDEVINE_CDM_AVAILABLE)
 #endif  // defined(ENABLE_PEPPER_CDMS)
 
 #if defined(OS_ANDROID)
   cdm::AddAndroidWidevine(key_systems_info);
 #endif  // defined(OS_ANDROID)
 }