Duplicate ScreenshotController under a flag

Bug: 354711957
Flag: com.android.systemui.screenshot_ui_controller_refactor
Test: manual (with flag on/off)
Change-Id: I47a1f5b5c7453e0517a7ef948024669d3c7f1995
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 97a45fb..e8a4d0c 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -601,6 +601,13 @@
 }
 
 flag {
+    name: "screenshot_ui_controller_refactor"
+    namespace: "systemui"
+    description: "Simplify and refactor ScreenshotController"
+    bug: "354711957"
+}
+
+flag {
    name: "run_fingerprint_detect_on_dismissible_keyguard"
    namespace: "systemui"
    description: "Run fingerprint detect instead of authenticate if the keyguard is dismissible."