Hides text on ButtonDropTargets if any of them are ellipsized.

This can happen on small devices or on devices where Font/Display size
is enlarged and when Developer Options is turned on when all three
options {Uninstall, Delete, App Info} are shown at once.

Bug: 64391860
Change-Id: If355d28087d53148114eb586efb3c26f158b3713
diff --git a/src/com/android/launcher3/DeleteDropTarget.java b/src/com/android/launcher3/DeleteDropTarget.java
index 975675a..4dcb64f 100644
--- a/src/com/android/launcher3/DeleteDropTarget.java
+++ b/src/com/android/launcher3/DeleteDropTarget.java
@@ -65,9 +65,11 @@
      * Set the drop target's text to either "Remove" or "Cancel" depending on the drag source.
      */
     public void setTextBasedOnDragSource(DragSource dragSource) {
-        if (!TextUtils.isEmpty(getText())) {
-            setText(dragSource.supportsDeleteDropTarget() ? R.string.remove_drop_target_label
+        if (!TextUtils.isEmpty(mText)) {
+            mText = getResources().getString(dragSource.supportsDeleteDropTarget()
+                    ? R.string.remove_drop_target_label
                     : android.R.string.cancel);
+            requestLayout();
         }
     }