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

ui/views/controls/webview/webview.cc

Index: ui/views/controls/webview/webview.cc
diff --git a/ui/views/controls/webview/webview.cc b/ui/views/controls/webview/webview.cc
index 6b6f0b9169df46bd298605c4f1844b6abb75b7df..59f87612fe54deb85db7e8f2e3f448c5d1a89061 100644
--- a/ui/views/controls/webview/webview.cc
+++ b/ui/views/controls/webview/webview.cc
@@ -285,12 +285,12 @@ void WebView::WebContentsDestroyed() {
   NotifyAccessibilityWebContentsChanged();
 }
 
-void WebView::DidShowFullscreenWidget(int routing_id) {
+void WebView::DidShowFullscreenWidget() {
   if (embed_fullscreen_widget_mode_enabled_)
     ReattachForFullscreenChange(true);
 }
 
-void WebView::DidDestroyFullscreenWidget(int routing_id) {
+void WebView::DidDestroyFullscreenWidget() {
   if (embed_fullscreen_widget_mode_enabled_)
     ReattachForFullscreenChange(false);
 }