[OneSearch] Add a flag to guard QSB animations.

Bug: 225749858
Test: manual
Change-Id: Ib725b9bcec235d2e23cf93b2f86d0dc9cd0600cb
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index de33ae5..8ba2070 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -258,6 +258,9 @@
             "ENABLE_NEW_MIGRATION_LOGIC", true,
             "Enable the new grid migration logic, keeping pages when src < dest");
 
+    public static final BooleanFlag ENABLE_ONE_SEARCH_MOTION = new DeviceFlag(
+            "ENABLE_ONE_SEARCH_MOTION", false, "Enables animations in OneSearch.");
+
     public static void initialize(Context context) {
         synchronized (sDebugFlags) {
             for (DebugFlag flag : sDebugFlags) {