media: Use platform specific folders for CDMs

media/cdm/cdm_paths.h

Index: media/cdm/cdm_paths.h
diff --git a/media/cdm/cdm_paths.h b/media/cdm/cdm_paths.h
new file mode 100644
index 0000000000000000000000000000000000000000..dedbf085d3ff2cd2f558814874480a57576703f9
--- /dev/null
+++ b/media/cdm/cdm_paths.h
@@ -0,0 +1,25 @@
+// Copyright 2016 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 MEDIA_CDM_CDM_PATHS_H_
+#define MEDIA_CDM_CDM_PATHS_H_
+
+#include <string>
+
+#include "base/files/file_path.h"
+#include "media/base/media_export.h"
+
+namespace media {
+
+// Returns the platform specific relative path of a component CDM. When CDM is

[ddorwin, 2016/05/19 00:04:26]

...path of the CDM. When...

It's always the path, regardless of component.

[xhwang, 2016/05/20 00:22:35]

Done.

+// not a component, returns an empty path. Otherwise, returns
+//   |cdm_base_path|/_platform_specific/<platform>_<arch>
+//   e.g. WidevineCdm/_platform_specific/win_x64
+// TODO(xhwang): Use this function in Widevine CDM component installer.
+MEDIA_EXPORT base::FilePath GetPlatformSpecificDirectory(
+    const std::string& cdm_base_path);
+
+}  // namespace media
+
+#endif  // MEDIA_CDM_CDM_PATHS_H_