Add skeleton classes for gesture

Change-Id: I6ada110a934b0dafc57d0dcd87723275fa733548
diff --git a/native/jni/src/dictionary.cpp b/native/jni/src/dictionary.cpp
index 83bb267..e0b7f87 100644
--- a/native/jni/src/dictionary.cpp
+++ b/native/jni/src/dictionary.cpp
@@ -43,6 +43,8 @@
     mUnigramDictionary = new UnigramDictionary(mDict + headerSize, typedLetterMultiplier,
             fullWordMultiplier, maxWordLength, maxWords, options);
     mBigramDictionary = new BigramDictionary(mDict + headerSize, maxWordLength);
+    mGestureDecoder = new GestureDecoder(maxWordLength, maxWords);
+    mGestureDecoder->setDict(mUnigramDictionary, mBigramDictionary);
 }
 
 Dictionary::~Dictionary() {