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/WVCryptoFactory.h

@@ -0,0 +1,34 @@
+//
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+
+#ifndef WV_CRYPTO_FACTORY_H_
+#define WV_CRYPTO_FACTORY_H_
+
+#include "media/hardware/CryptoAPI.h"
+#include "media/stagefright/foundation/ABase.h"
+#include "utils/Errors.h"
+
+namespace wvdrm {
+
+class WVCryptoFactory : public android::CryptoFactory {
+ public:
+  WVCryptoFactory();
+  virtual ~WVCryptoFactory();
+
+  virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) const;
+
+  virtual android::status_t createPlugin(const uint8_t uuid[16],
+                                         const void* data, size_t size,
+                                         android::CryptoPlugin** plugin);
+
+ private:
+  DISALLOW_EVIL_CONSTRUCTORS(WVCryptoFactory);
+
+  void* mLegacyLibraryHandle;
+  android::CryptoFactory* mLegacyFactory;
+};
+
+} // namespace wvdrm
+
+#endif // WV_CRYPTO_FACTORY_H_