Add support for crypto HAL on L3 devices DO NOT MERGE

Includes widevine library release version 4.5.0.7571

Change-Id: I9e574d5606576aab376d0524a4bf1a81e5a61678
related-to-bug: 6427322
related-to-bug: 6427274

proprietary/wvm/include/WVMMediaSource.h

@@ -47,7 +47,8 @@ public:
 
     int64_t getTime() { return mKeyTime; };  // usec.
 
-#ifdef REQUIRE_SECURE_BUFFERS
+    static const int kCryptoBlockSize = 16;
+
     class DecryptContext {
     public:
         void Initialize(MediaBuffer *mediaBuf) {
@@ -57,16 +58,19 @@ public:
         }
         MediaBuffer *mMediaBuf;
         size_t mOffset;
-        static const int kCryptoBlockSize = 16;
         unsigned char mIV[kCryptoBlockSize];
     };
 
     static void DecryptCallback(WVEsSelector esType, void* input, void* output, size_t length,
                                 int key, void *context);
     DecryptContext& getDecryptContext() { return mDecryptContext; }
+
+    void SetCryptoPluginKey(const char key[kCryptoBlockSize]) {
+        memcpy(mCryptoPluginKey, key, sizeof(mCryptoPluginKey));
+    }
+
 private:
     DecryptContext mDecryptContext;
-#endif
 
 protected:
     virtual ~WVMMediaSource();
@@ -85,6 +89,7 @@ private:
     bool mNewSegment;
     bool mCryptoInitialized;
     bool mIsStalled;
+    bool mStripADTS;
 
     MediaBufferGroup *mGroup;
 
@@ -97,6 +102,7 @@ private:
     sp<ClientContext> mClientContext;
 
     Vector<size_t> mEncryptedSizes;
+    char mCryptoPluginKey[kCryptoBlockSize];
 
     void allocBufferGroup();