Adds a modal dialog implementation of the settings reset prompt.

chrome/browser/safe_browsing/settings_reset_prompt/extension_info.h

 // 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 CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_EXTENSION_INFO_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_EXTENSION_INFO_H_
 
 #include <string>
 
 #include "extensions/common/extension_id.h"
 
 namespace extensions {
 class Extension;
 }  // namespace extensions
 
 namespace safe_browsing {
 
 struct ExtensionInfo {
   explicit ExtensionInfo(const extensions::Extension* extension);
+  // Convenience constructor for tests.
+  ExtensionInfo(const extensions::ExtensionId& id, const std::string& name);
   ~ExtensionInfo();
 
   extensions::ExtensionId id;
   std::string name;
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SETTINGS_RESET_PROMPT_EXTENSION_INFO_H_