Deal with frame removal by content scripts

chrome/renderer/chrome_content_renderer_client.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 "chrome/renderer/chrome_content_renderer_client.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
@@ skipping 1374 matching lines @@
       data_reduction_proxy::chrome_proxy_header()));
   if (!response.httpHeaderField(header_key).isNull() &&
       response.httpHeaderField(header_key).utf8().find(
           data_reduction_proxy::chrome_proxy_lo_fi_directive()) !=
               std::string::npos) {
     (*properties)[data_reduction_proxy::chrome_proxy_header()] =
         data_reduction_proxy::chrome_proxy_lo_fi_directive();
   }
 }
 
+void ChromeContentRendererClient::RunScriptsAtDocumentStart(
+    content::RenderFrame* render_frame) {
+#if defined(ENABLE_EXTENSIONS)
+  ChromeExtensionsRendererClient::GetInstance()->RunScriptsAtDocumentStart(
+      render_frame);
+  // |render_frame| might be dead by now.
+#endif
+}
+
+void ChromeContentRendererClient::RunScriptsAtDocumentEnd(
+    content::RenderFrame* render_frame) {
+#if defined(ENABLE_EXTENSIONS)
+  ChromeExtensionsRendererClient::GetInstance()->RunScriptsAtDocumentEnd(
+      render_frame);
+  // |render_frame| might be dead by now.
+#endif
+}
+
 void
 ChromeContentRendererClient::DidInitializeServiceWorkerContextOnWorkerThread(
     v8::Local<v8::Context> context,
     const GURL& url) {
 #if defined(ENABLE_EXTENSIONS)
   extensions::Dispatcher::DidInitializeServiceWorkerContextOnWorkerThread(
       context, url);
 #endif
 }
 
@@ skipping 10 matching lines @@
 // chrome.system.network.getNetworkInterfaces provides the same
 // information. Also, the enforcement of sending and binding UDP is already done
 // by chrome extension permission model.
 bool ChromeContentRendererClient::ShouldEnforceWebRTCRoutingPreferences() {
 #if defined(ENABLE_EXTENSIONS)
   return !IsStandaloneExtensionProcess();
 #else
   return true;
 #endif
 }