Use getText() in ChipTouchHelper for consistency

PiperOrigin-RevId: 204138629

Author: Material Design Team

lib/java/com/google/android/material/chip/Chip.java

@@ -1002,7 +1002,7 @@ protected void onPopulateNodeForVirtualView(
     protected void onPopulateNodeForHost(AccessibilityNodeInfoCompat node) {
       node.setCheckable(chipDrawable != null && chipDrawable.isCheckable());
       node.setClassName(Chip.class.getName());
-      CharSequence chipText = chipDrawable != null ? chipDrawable.getText() : "";
+      CharSequence chipText = getText();
       if (VERSION.SDK_INT >= VERSION_CODES.M) {
         node.setText(chipText);
       } else {