Fix event handling on non-distinct multi touch device

This bug has been introduced by Idfbc9706.

Bug: 4768084
Change-Id: If9e2a2d3ed1f6b4e6209c883e6fcca52286ede3f

java/src/com/android/inputmethod/keyboard/LatinKeyboardBaseView.java

@@ -605,6 +605,9 @@ public class LatinKeyboardBaseView extends KeyboardView implements PointerTracke
         case MotionEvent.ACTION_POINTER_UP:
             tracker.onUpEvent(x, y, eventTime);
             break;
+        case MotionEvent.ACTION_MOVE:
+            tracker.onMoveEvent(x, y, eventTime);
+            break;
         case MotionEvent.ACTION_CANCEL:
             tracker.onCancelEvent(x, y, eventTime);
             break;