Deal with frame removal by content scripts

chrome/renderer/extensions/chrome_extensions_renderer_client.cc

 // Copyright 2014 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 "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 286 matching lines @@
 content::BrowserPluginDelegate*
 ChromeExtensionsRendererClient::CreateBrowserPluginDelegate(
     content::RenderFrame* render_frame,
     const std::string& mime_type,
     const GURL& original_url) {
   if (mime_type == content::kBrowserPluginMimeType)
     return new extensions::ExtensionsGuestViewContainer(render_frame);
   return new extensions::MimeHandlerViewContainer(render_frame, mime_type,
                                                   original_url);
 }
+
+void ChromeExtensionsRendererClient::RunScriptsAtDocumentStart(
+    content::RenderFrame* render_frame) {
+  extension_dispatcher_->RunScriptsAtDocumentStart(render_frame);
+}
+
+void ChromeExtensionsRendererClient::RunScriptsAtDocumentEnd(
+    content::RenderFrame* render_frame) {
+  extension_dispatcher_->RunScriptsAtDocumentEnd(render_frame);
+}