[QL-v2] Reset input state on scroll and restore state on scrolling back.

Bug: 261872461
Test: see video in bug
Change-Id: I18e1923bdd4c40e84e46579296b69268d46c9fa1

src/com/android/launcher3/ExtendedEditText.java

@@ -159,4 +159,14 @@ public class ExtendedEditText extends EditText {
             listener.onFocusChange(this, focused);
         }
     }
+
+    /**
+     * Save the input, suggestion, hint states when it's on focus, and set to unfocused states.
+     */
+    public void saveFocusedStateAndUpdateToUnfocusedState() {}
+
+    /**
+     * Restore to the previous saved focused state.
+     */
+    public void restoreToFocusedState() {}
 }