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

ui/views/controls/webview/webview.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/webview/webview.h"
 
 #include <utility>
 
 #include "build/build_config.h"
 #include "content/public/browser/browser_accessibility_state.h"
@@ skipping 267 matching lines @@
 }
 
 void WebView::WebContentsDestroyed() {
   if (observing_render_process_host_) {
     observing_render_process_host_->RemoveObserver(this);
     observing_render_process_host_ = nullptr;
   }
   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);
 }
 
 void WebView::DidToggleFullscreenModeForTab(bool entered_fullscreen,
                                             bool will_cause_resize) {
   if (embed_fullscreen_widget_mode_enabled_)
     ReattachForFullscreenChange(entered_fullscreen);
 }
 
@@ skipping 79 matching lines @@
   if (!contents) {
     content::WebContents::CreateParams create_params(
         browser_context, NULL);
     return content::WebContents::Create(create_params);
   }
 
   return contents;
 }
 
 }  // namespace views