Delegate touch handler registration logic to the TouchEventQueue

content/browser/renderer_host/input/input_router_impl.h

Index: content/browser/renderer_host/input/input_router_impl.h
diff --git a/content/browser/renderer_host/input/input_router_impl.h b/content/browser/renderer_host/input/input_router_impl.h
index e12b7510ccf0118b1a27d1dc7070491a46b05ffb..2b8cc2fa47bb1c4a0dbfdb2b27beae492996604d 100644
--- a/content/browser/renderer_host/input/input_router_impl.h
+++ b/content/browser/renderer_host/input/input_router_impl.h
@@ -230,11 +230,6 @@ private:
   // back to whatever unhandled handler instead of the returned version.
   KeyQueue key_queue_;
 
-  // Keeps track of whether the webpage has any touch event handler. If it does,
-  // then touch events are sent to the renderer. Otherwise, the touch events are
-  // not sent to the renderer.
-  bool has_touch_handler_;
-
   // Whether touch ack timeout handling has been enabled via the command line.
   bool touch_ack_timeout_enabled_;
   size_t touch_ack_timeout_delay_ms_;