Flag to enable hiding the bubble overflow if it's empty

Test: none
Bug: 334175587
Change-Id: I5b2bb3d4cafe1b35788f3f1d7c19c22d71c07671
diff --git a/libs/WindowManager/Shell/aconfig/multitasking.aconfig b/libs/WindowManager/Shell/aconfig/multitasking.aconfig
index 7ff204c..fe68123 100644
--- a/libs/WindowManager/Shell/aconfig/multitasking.aconfig
+++ b/libs/WindowManager/Shell/aconfig/multitasking.aconfig
@@ -64,3 +64,10 @@
     description: "Enables long-press action for nav handle when a bubble is expanded"
     bug: "324910035"
 }
+
+flag {
+    name: "enable_optional_bubble_overflow"
+    namespace: "multitasking"
+    description: "Hides the bubble overflow if there aren't any overflowed bubbles"
+    bug: "334175587"
+}