[HBD] Intercept navigation to Flash download page

chrome/browser/plugins/flash_download_interception.h

+// Copyright 2016 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_PLUGINS_FLASH_DOWNLOAD_INTERCEPTION_H_
+#define CHROME_BROWSER_PLUGINS_FLASH_DOWNLOAD_INTERCEPTION_H_
+
+#include <memory>
+
+#include "base/macros.h"
+
+namespace content {
+class NavigationHandle;
+class NavigationThrottle;
+}
+
+// This class creates navigation throttles that intercept navigations to Flash's
+// download page. The user is queried about activating Flash instead, since
+// Chrome already ships with it. Note that this is an UI thread class.
+class FlashDownloadInterception {
+ public:
+  static std::unique_ptr<content::NavigationThrottle> MaybeCreateThrottleFor(
+      content::NavigationHandle* handle);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FlashDownloadInterception);
+};
+
+#endif  // CHROME_BROWSER_PLUGINS_FLASH_DOWNLOAD_INTERCEPTION_H_