Remove unused routing ID param from Did(Show|Destroy)FullscreenWidget.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 267eeb8e5360f38c727800484ca4396897bf36ff..6ad74cee8844cfd175b296bf6697f1c5c22b6dbe 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -1680,8 +1680,7 @@ void WebContentsImpl::RenderWidgetDeleted(
       delegate_->ExitFullscreenModeForTab(this);
     FOR_EACH_OBSERVER(WebContentsObserver,
                       observers_,
-                      DidDestroyFullscreenWidget(
-                          fullscreen_widget_routing_id_));
+                      DidDestroyFullscreenWidget());
     fullscreen_widget_routing_id_ = MSG_ROUTING_NONE;
     if (fullscreen_widget_had_focus_at_shutdown_)
       view_->RestoreFocus();
@@ -2182,7 +2181,7 @@ void WebContentsImpl::ShowCreatedWidget(int route_id,
     }
     FOR_EACH_OBSERVER(WebContentsObserver,
                       observers_,
-                      DidShowFullscreenWidget(route_id));
+                      DidShowFullscreenWidget());
     if (!widget_host_view->HasFocus())
       widget_host_view->Focus();
   } else {