Teach input_handler_proxy about once callbacks.

content/renderer/input/input_handler_manager.cc

Index: content/renderer/input/input_handler_manager.cc
diff --git a/content/renderer/input/input_handler_manager.cc b/content/renderer/input/input_handler_manager.cc
index 258e9108bfd9cc44026fd166548c228337160d01..05f5c067d8d7f151d900f714113a401f33c6073b 100644
--- a/content/renderer/input/input_handler_manager.cc
+++ b/content/renderer/input/input_handler_manager.cc
@@ -223,8 +223,8 @@ void InputHandlerManager::HandleInputEvent(
   InputHandlerProxy* proxy = it->second->input_handler_proxy();
   proxy->HandleInputEventWithLatencyInfo(
       std::move(input_event), latency_info,
-      base::Bind(&InputHandlerManager::DidHandleInputEventAndOverscroll,
-                 weak_ptr_factory_.GetWeakPtr(), callback));
+      base::BindOnce(&InputHandlerManager::DidHandleInputEventAndOverscroll,
+                     weak_ptr_factory_.GetWeakPtr(), callback));
 }
 
 void InputHandlerManager::QueueClosureForMainThreadEventQueue(