[Toast] Add a feature flag for using app search for web zero-state.

Bug: 241001264
Test: local
Change-Id: Id4af1664253182217014a43d8f8025f1a00da291
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 49466ad..e109b47 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -269,6 +269,10 @@
             "USE_SEARCH_REQUEST_TIMEOUT_OVERRIDES", false,
             "Use local overrides for search request timeout");
 
+    public static final BooleanFlag USE_APP_SEARCH_FOR_WEB = getDebugFlag(
+            "USE_APP_SEARCH_FOR_WEB", false,
+            "Use app search to request zero state web suggestions");
+
     public static final BooleanFlag CONTINUOUS_VIEW_TREE_CAPTURE = getDebugFlag(
             "CONTINUOUS_VIEW_TREE_CAPTURE", false, "Capture View tree every frame");