Delegates for the printing component

chrome/renderer/printing/chrome_print_web_view_helper_delegate.h

+// 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.
+
+#ifndef CHROME_RENDERER_PRINTING_CHROME_PRINT_WEB_VIEW_HELPER_DELEGATE_H_
+#define CHROME_RENDERER_PRINTING_CHROME_PRINT_WEB_VIEW_HELPER_DELEGATE_H_
+
+#include "chrome/renderer/printing/print_web_view_helper.h"
+
+namespace content {
+class RenderView;
+}
+
+class ChromePrintWebViewHelperDelegate
+    : public printing::PrintWebViewHelper::Delegate {
+ public:
+  ~ChromePrintWebViewHelperDelegate() override;
+
+  // If a scripted print needs to be cancelled, sends a message to do so.
+  // Returns |true| if the message is successfully sent, |false| otherwise.
+  bool CancelPrerender(content::RenderView* render_view,
+                       int routing_id) override;
+
+};  // class ChromePrintWebViewHelperDelegate
+
+#endif  // CHROME_RENDERER_PRINTING_CHROME_PRINT_WEB_VIEW_HELPER_DELEGATE_H_