Use WordComposer.addKeyInfo for testing

Change-Id: I500654e7a26717aa5547942357e56060afb72969

java/src/com/android/inputmethod/latin/WordComposer.java

@@ -16,6 +16,7 @@
 
 package com.android.inputmethod.latin;
 
+import com.android.inputmethod.annotations.UsedForTesting;
 import com.android.inputmethod.keyboard.Key;
 import com.android.inputmethod.keyboard.Keyboard;
 
@@ -177,7 +178,8 @@ public final class WordComposer {
     /**
      * Internal method to retrieve reasonable proximity info for a character.
      */
-    private void addKeyInfo(final int codePoint, final Keyboard keyboard) {
+    @UsedForTesting
+    public void addKeyInfo(final int codePoint, final Keyboard keyboard) {
         final int x, y;
         final Key key;
         if (keyboard != null && (key = keyboard.getKey(codePoint)) != null) {