Add touch scrolling modes experimental flags (DEPRECATED)

content/browser/renderer_host/input/gesture_event_queue.h

Index: content/browser/renderer_host/input/gesture_event_queue.h
diff --git a/content/browser/renderer_host/input/gesture_event_queue.h b/content/browser/renderer_host/input/gesture_event_queue.h
index 8855453494f884714463a96b278c789eafd25cce..b30106ddd47ba773ec69d3230e447a03e19c8d08 100644
--- a/content/browser/renderer_host/input/gesture_event_queue.h
+++ b/content/browser/renderer_host/input/gesture_event_queue.h
@@ -63,7 +63,9 @@ class CONTENT_EXPORT GestureEventQueue {
       PENDING,                 // The sequence has yet to receive an ack.
       ALLOWED_UNTIL_PREVENTED, // Gestures in the sequence are allowed until
                                // a source touch is preventDefault'ed.
-      ALWAYS_ALLOWED,          // All remaining sequence gestures are forwarded.
+      ALWAYS_ALLOWED,          // All remaining sequence gestures are forwarded
+                               // except for independent packets whose
+                               // corresponding touch was consumed.
       ALWAYS_PREVENTED         // All remaining sequence gestures are dropped.
     };
     GestureHandlingState state_;