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/mediacrypto/include/WVCryptoPlugin.h

@@ -0,0 +1,37 @@
+//
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+
+#ifndef WV_CRYPTO_PLUGIN_H_
+#define WV_CRYPTO_PLUGIN_H_
+
+#include "media/hardware/CryptoAPI.h"
+#include "media/stagefright/foundation/ABase.h"
+#include "media/stagefright/foundation/AString.h"
+#include "wv_content_decryption_module.h"
+
+namespace wvdrm {
+
+class WVCryptoPlugin : public android::CryptoPlugin {
+ public:
+  WVCryptoPlugin(const void* data, size_t size,
+                 wvcdm::WvContentDecryptionModule* cdm);
+  virtual ~WVCryptoPlugin() {}
+
+  virtual bool requiresSecureDecoderComponent(const char *mime) const;
+
+  virtual ssize_t decrypt(bool secure, const uint8_t key[16],
+                          const uint8_t iv[16], Mode mode, const void* srcPtr,
+                          const SubSample* subSamples, size_t numSubSamples,
+                          void* dstPtr, android::AString* errorDetailMsg);
+
+ private:
+  DISALLOW_EVIL_CONSTRUCTORS(WVCryptoPlugin);
+
+  wvcdm::WvContentDecryptionModule* const mCDM;
+  const wvcdm::CdmSessionId mSessionId;
+};
+
+} // namespace wvdrm
+
+#endif // WV_CRYPTO_PLUGIN_H_