Add Launcher aconfig.

Use `enable_expanding_pause_work_button` as an example.

See go/trunk-stable-launcher for implementation details

Bug: 294913042

Test: adb shell device_config put launcher com.google.android.platform.launcher.aconfig.flags.enable_expanding_pause_work_button true

Flag: enable_expanding_pause_work_button
Change-Id: I732722c8b219c023adf5bf31f132ce9da72fc4d5
diff --git a/launcher.aconfig b/launcher.aconfig
new file mode 100644
index 0000000..cab193c
--- /dev/null
+++ b/launcher.aconfig
@@ -0,0 +1,8 @@
+package: "com.google.android.platform.launcher.aconfig.flags"
+
+flag {
+    name: "enable_expanding_pause_work_button"
+    namespace: "launcher"
+    description: "Expand and collapse pause work button while scrolling."
+    bug: "270390779"
+}