Delegates for the printing component

chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc

+// Copyright 2015 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/printing/chrome_print_web_view_helper_delegate.h"
+
+#include "chrome/common/render_messages.h"
+#include "chrome/renderer/prerender/prerender_helper.h"
+#include "content/public/renderer/render_view.h"
+#include "ipc/ipc_message.h"
+
+ChromePrintWebViewHelperDelegate::~ChromePrintWebViewHelperDelegate(){
+}
+
+bool ChromePrintWebViewHelperDelegate::CancelPrerender(
+    content::RenderView* render_view, int routing_id) {
+  if (!render_view || !prerender::PrerenderHelper::IsPrerendering(
+      render_view->GetMainRenderFrame()))
+    return false;
+
+  return render_view->Send(
+      new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id));
+}