Adds ActionSurface to feed_action.proto

PiperOrigin-RevId: 323628979
Change-Id: Ia0e187327c6720e225b2c54f35ca23df73c08d2d
diff --git a/src/main/proto/search/now/wire/feed/feed_action.proto b/src/main/proto/search/now/wire/feed/feed_action.proto
index 7b33ae7..b9a4150 100644
--- a/src/main/proto/search/now/wire/feed/feed_action.proto
+++ b/src/main/proto/search/now/wire/feed/feed_action.proto
@@ -60,6 +60,15 @@
       CLIENT_CACHE = 2;
     }
 
+    // The surface an action was taken on.
+    enum ActionSurface {
+      UNKNOWN_SURFACE = 0;
+      ANDROID_CHROME_NEW_TAB = 7;
+    }
+
+    // What surface the action came from - AGA, iGA, -1, secondary screen etc.
+    optional ActionSurface action_surface = 5;
+
     // Where the action came from on the client.
     // Optional: This field is purely for diagnostics.
     optional ActionOrigin action_origin = 4;