Initial import of Widevine Common Encryption DRM engine

Builds libwvmdrmengine.so, which is loaded by the new
MediaDrm APIs to support playback of Widevine/CENC
protected content.

Change-Id: I6f57dd37083dfd96c402cb9dd137c7d74edc8f1c

libwvdrmengine/include/WVDrmFactory.h

@@ -0,0 +1,30 @@
+//
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+
+#ifndef WV_DRM_FACTORY_H_
+#define WV_DRM_FACTORY_H_
+
+#include "media/drm/DrmAPI.h"
+#include "media/stagefright/foundation/ABase.h"
+#include "utils/Errors.h"
+
+namespace wvdrm {
+
+class WVDrmFactory : public android::DrmFactory {
+ public:
+  WVDrmFactory() {};
+  virtual ~WVDrmFactory() {};
+
+  virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
+
+  virtual android::status_t createDrmPlugin(const uint8_t uuid[16],
+                                            android::DrmPlugin** plugin);
+
+ private:
+  DISALLOW_EVIL_CONSTRUCTORS(WVDrmFactory);
+};
+
+} // namespace wvdrm
+
+#endif // WV_DRM_FACTORY_H_