Introduce the ChromeControllerClient class

chrome/browser/interstitials/chrome_controller_client.h

Index: chrome/browser/interstitials/chrome_controller_client.h
diff --git a/chrome/browser/interstitials/chrome_controller_client.h b/chrome/browser/interstitials/chrome_controller_client.h
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+// 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_BROWSER_INTERSTITIALS_CHROME_CONTROLLER_CLIENT_H_
+#define CHROME_BROWSER_INTERSTITIALS_CHROME_CONTROLLER_CLIENT_H_
+
+#include "base/macros.h"
+#include "components/security_interstitials/core/controller_client.h"
+
+namespace content {
+class WebContents;
+}
+
+// Provides embedder-specific logic for the security error page controller.
+class ChromeControllerClient : public security_interstitials::ControllerClient {
+ public:
+  explicit ChromeControllerClient(content::WebContents* web_contents);
+  ~ChromeControllerClient() override;
+
+ protected:
+  // security_interstitials::ControllerClient overrides
+  void OpenUrlInCurrentTab(const GURL& url) override;
+  const std::string& GetApplicationLocale() override;
+  PrefService* GetPrefService() override;
+  const std::string GetExtendedReportingPrefName() override;
+
+ private:
+  content::WebContents* web_contents_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeControllerClient);
+};
+
+#endif  // CHROME_BROWSER_INTERSTITIALS_CHROME_CONTROLLER_CLIENT_H_