Fix typo wordPreperty -> wordProperty.

Change-Id: I793f9a42f8dbf48fa15292e74df9edf1cf5d8901
diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionary.java b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
index 94a1e36..999508e 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
@@ -414,8 +414,8 @@
         public WordProperty mWordProperty;
         public int mNextToken;
 
-        public GetNextWordPropertyResult(final WordProperty wordPreperty, final int nextToken) {
-            mWordProperty = wordPreperty;
+        public GetNextWordPropertyResult(final WordProperty wordProperty, final int nextToken) {
+            mWordProperty = wordProperty;
             mNextToken = nextToken;
         }
     }