Initial implementation of Encrypted Media Extensions in Chrome.

webkit/media/mime_util.h

+// 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.
+
+#ifndef WEBKIT_MEDIA_MIME_UTIL_H_
+#define WEBKIT_MEDIA_MIME_UTIL_H_
+
+#include <string>
+#include <vector>
+
+namespace WebKit {
+class WebString;
+}
+
+namespace webkit_media {
+
+namespace mime_util {

[darin (slow to review), 2012/04/17 22:41:54]

I think it would be better to make a more specific class for these methods.  It
seems like something based on the term "key system" would be helpful.  I
wouldn't reuse mime_util here.  In general, *util* is overused in Chromium, and
it ends up becoming an unstructured dumping ground.  Let's avoid *util* files!

[ddorwin, 2012/04/17 23:25:37]

Done.

+
+// Returns whether |key_sytem| is supported at all.
+// Call IsSupportedKeySystemWithMediaMimeType() to determine whether a
+// |key_system| supports a specific type of media.
+bool isKeySystemSupported(const WebKit::WebString& key_system);
+
+// Returns whether |key_sytem| supports the specified media type and codec(s).
+bool IsSupportedKeySystemWithMediaMimeType(
+    const std::string& mime_type,
+    const std::vector<std::string>& codecs,
+    const std::string& key_system);
+
+}  // namespace mime_util
+
+}  // namespace webkit_media
+
+#endif  // WEBKIT_MEDIA_MIME_UTIL_H_