Move correction state to stack memory

*Before
(0)  13.18 (0.01%)
(1)  93025.41 (62.06%)
(2)  10.75 (0.01%)
(3)  10.50 (0.01%)
(4)  117.50 (0.08%)
(5)  55678.98 (37.14%)
(6)  9.09 (0.01%)
(20) 883.84 (0.59%)
Total 149898.24 (sum of others 149749.25)

*After
(0)  17.41 (0.01%)
(1)  92673.41 (61.95%)
(2)  10.62 (0.01%)
(3)  10.37 (0.01%)
(4)  120.96 (0.08%)
(5)  55741.18 (37.26%)
(6)  11.01 (0.01%)
(20) 862.72 (0.58%)
Total 149595.52 (sum of others 149447.68)

Change-Id: Ia5a25a544fc388e4dab1e08d8f78d5117b249cf3
diff --git a/native/jni/src/proximity_info.h b/native/jni/src/proximity_info.h
index 67f2f60..fec6555 100644
--- a/native/jni/src/proximity_info.h
+++ b/native/jni/src/proximity_info.h
@@ -99,6 +99,7 @@
     }
 
  private:
+    DISALLOW_IMPLICIT_CONSTRUCTORS(ProximityInfo);
     // The max number of the keys in one keyboard layout
     static const int MAX_KEY_COUNT_IN_A_KEYBOARD = 64;
     // The upper limit of the char code in mCodeToKeyIndex