Deal with frame removal by content scripts

chrome/renderer/extensions/chrome_extensions_renderer_client.cc

Index: chrome/renderer/extensions/chrome_extensions_renderer_client.cc
diff --git a/chrome/renderer/extensions/chrome_extensions_renderer_client.cc b/chrome/renderer/extensions/chrome_extensions_renderer_client.cc
index 0f3d463acbaa8356cb2cf1293434a003746a00c1..78e7b2e3f8de72083f9e5b794e405e10f7392e5b 100644
--- a/chrome/renderer/extensions/chrome_extensions_renderer_client.cc
+++ b/chrome/renderer/extensions/chrome_extensions_renderer_client.cc
@@ -304,3 +304,13 @@ ChromeExtensionsRendererClient::CreateBrowserPluginDelegate(
   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);
+}