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/WVCreatePluginFactories.h

@@ -0,0 +1,16 @@
+//
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+
+#ifndef WV_CREATE_PLUGIN_FACTORIES_H_
+#define WV_CREATE_PLUGIN_FACTORIES_H_
+
+#include "media/drm/DrmAPI.h"
+#include "media/hardware/CryptoAPI.h"
+
+extern "C" {
+  android::DrmFactory* createDrmFactory();
+  android::CryptoFactory* createCryptoFactory();
+}
+
+#endif // WV_CREATE_PLUGIN_FACTORIES_H_