Implement a skeleton of the Superfish interstitial

components/security_interstitials/core/superfish_error_ui.h

Index: components/security_interstitials/core/superfish_error_ui.h
diff --git a/components/security_interstitials/core/superfish_error_ui.h b/components/security_interstitials/core/superfish_error_ui.h
new file mode 100644
index 0000000000000000000000000000000000000000..efd984acb5e27bdae9c1fb16708025017cca1865
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+++ b/components/security_interstitials/core/superfish_error_ui.h
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+// Copyright 2017 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 COMPONENTS_SECURITY_INTERSTITIALS_CORE_SUPERFISH_ERROR_UI_H_
+#define COMPONENTS_SECURITY_INTERSTITIALS_CORE_SUPERFISH_ERROR_UI_H_
+
+#include "components/security_interstitials/core/ssl_error_ui.h"
+
+namespace security_interstitials {
+
+class ControllerClient;
+
+// A subclass of SSLErrorUI that customizes the error UI with instructions for
+// uninstalling the Superfish software.
+class SuperfishErrorUI : public SSLErrorUI {
+ public:
+  SuperfishErrorUI(
+      const GURL& request_url,
+      int cert_error,
+      const net::SSLInfo& ssl_info,
+      int display_options,  // Bitmask of SSLErrorOptionsMask values.
+      const base::Time& time_triggered,
+      ControllerClient* controller);
+  ~SuperfishErrorUI() override {}
+
+  void PopulateStringsForHTML(base::DictionaryValue* load_time_data) override;
+  void HandleCommand(SecurityInterstitialCommands command) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SuperfishErrorUI);
+};
+
+}  // namespace security_interstitials
+
+#endif  // COMPONENTS_SECURITY_INTERSTITIALS_CORE_SUPERFISH_ERROR_UI_H_