1 files changed, 50 insertions, 0 deletions
diff --git a/media/cdm/supported_cdm_versions.cc b/media/cdm/supported_cdm_versions.cc
new file mode 100644
index 0000000..6a8f896
--- /dev/null
+++ b/media/cdm/supported_cdm_versions.cc
@@ -0,0 +1,50 @@
+// Copyright 2015 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/supported_cdm_versions.h"
+
+#include "base/basictypes.h"
+#include "media/cdm/api/content_decryption_module.h"
+
+namespace media {
+
+bool IsSupportedCdmModuleVersion(int version) {
+  switch (version) {
+    // Latest.
+    case CDM_MODULE_VERSION:
+      return true;
+    default:
+      return false;
+  }
+}
+
+bool IsSupportedCdmInterfaceVersion(int version) {
+  static_assert(cdm::ContentDecryptionModule::kVersion ==
+                    cdm::ContentDecryptionModule_8::kVersion,
+                "update the code below");
+  switch (version) {
+    // Supported versions in decreasing order.
+    case cdm::ContentDecryptionModule_8::kVersion:
+    case cdm::ContentDecryptionModule_7::kVersion:
+      return true;
+    default:
+      return false;
+  }
+}
+
+bool IsSupportedCdmHostVersion(int version) {
+  static_assert(cdm::ContentDecryptionModule::Host::kVersion ==
+                    cdm::ContentDecryptionModule_8::Host::kVersion,
+                "update the code below");
+  switch (version) {
+    // Supported versions in decreasing order.
+    case cdm::Host_8::kVersion:
+    case cdm::Host_7::kVersion:
+      return true;
+    default:
+      return false;
+  }
+}
+
+}  // namespace media