Don't DCHECK in EventDispatcher::RemoveAccelerator

components/mus/ws/event_dispatcher.cc

Index: components/mus/ws/event_dispatcher.cc
diff --git a/components/mus/ws/event_dispatcher.cc b/components/mus/ws/event_dispatcher.cc
index 57efcc1d9da32e677b6579c82426a99450b3f9fb..9b633b03831369eb76c65d8f72456d233c8a2a61 100644
--- a/components/mus/ws/event_dispatcher.cc
+++ b/components/mus/ws/event_dispatcher.cc
@@ -315,8 +315,9 @@ bool EventDispatcher::AddAccelerator(uint32_t id,
 
 void EventDispatcher::RemoveAccelerator(uint32_t id) {
   auto it = accelerators_.find(id);
-  DCHECK(it != accelerators_.end());
-  accelerators_.erase(it);
+  // Clients may pass bogus ids.
+  if (it != accelerators_.end())
+    accelerators_.erase(it);
 }
 
 void EventDispatcher::ProcessEvent(const ui::Event& event) {