Use InstallDetails in installer_util.

chrome/install_static/test/scoped_install_details.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_INSTALL_STATIC_TEST_SCOPED_INSTALL_DETAILS_H_
 #define CHROME_INSTALL_STATIC_TEST_SCOPED_INSTALL_DETAILS_H_
 
 #include <memory>
 
 #include "base/macros.h"
 
 namespace install_static {
 
 class InstallDetails;
 
 // A facility for tests to register an InstallDetails for the duration of a
 // test harness or test run.
 class ScopedInstallDetails {
  public:
   // Installs an InstallDetails instance that will report the install as being
   // at |system_level| and of mode |install_mode_index| (an InstallConstantIndex
   // value) of the current brand; see ../install_modes.h for details.
+  // TODO(grt): replace bool and int with more obvious types (e.g., enum).
   explicit ScopedInstallDetails(bool system_level = false,
                                 int install_mode_index = 0);
   ~ScopedInstallDetails();
 
  private:
   // A raw pointer to the InstallDetails instance created by this object. This
   // is used only to assert that no intervening instances were swapped in yet
   // not restored during the lifetime of this object.
   const InstallDetails* these_details_ = nullptr;
 
   // The module's InstallDetails instance prior to the creation of this object.
   // This instance will be swapped back into place when this object is
   // destroyed.
   std::unique_ptr<const InstallDetails> previous_details_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedInstallDetails);
 };
 
 }  // namespace install_static
 
 #endif  // CHROME_INSTALL_STATIC_TEST_SCOPED_INSTALL_DETAILS_H_