Add audio sharing quick settings dialog improvement flag.

Test: compile
Bug: 360759048
Flag: EXEMPT add flag
Change-Id: I49e2d3f645dc852135c237697655ab431862b007
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index 34b597b..79c3ff9 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -139,3 +139,13 @@
         purpose: PURPOSE_BUGFIX
     }
 }
+
+flag {
+    name: "audio_sharing_qs_dialog_improvement"
+    namespace: "cross_device_experiences"
+    description: "Gates whether to enable audio sharing qs dialog improvement"
+    bug: "360759048"
+    metadata {
+        purpose: PURPOSE_BUGFIX
+    }
+}