Fix: The top left key is a proximity of nonexistent keys.

Bug: 13315755
Change-Id: I39e905b6ddfc8d3510c408a3bea853390a75d088

native/jni/src/suggest/core/layout/proximity_info_utils.h

@@ -164,6 +164,9 @@ class ProximityInfoUtils {
             const int gridWidth, const int mostCommonKeyWidth, const int keyCount,
             const int x, const int y, const int primaryKey, const char *const localeStr,
             const hash_map_compat<int, int> *const codeToKeyMap, int *proximities) {
+        if (x == NOT_A_COORDINATE || y == NOT_A_COORDINATE) {
+            return;
+        }
         const int mostCommonKeyWidthSquare = mostCommonKeyWidth * mostCommonKeyWidth;
         int insertPos = 0;
         proximities[insertPos++] = primaryKey;