Remove uses of BrowserDistribution::CHROME_BINARIES in installer_util.

chrome/browser/google/did_run_updater_win.h

 // Copyright 2014 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_GOOGLE_DID_RUN_UPDATER_WIN_H_
 #define CHROME_BROWSER_GOOGLE_DID_RUN_UPDATER_WIN_H_
 
 #include "base/macros.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 // Updates Chrome's "did run" state periodically when the process is in use.
 // The creation of renderers is used as a proxy for "is the browser in use."
 class DidRunUpdater : public content::NotificationObserver {
  public:
   DidRunUpdater();
   ~DidRunUpdater() override;
 
  private:
   // content::NotificationObserver:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
-  // True if the process is running from a system-level installation.
-  bool system_level_;
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(DidRunUpdater);
 };
 
 #endif  // CHROME_BROWSER_GOOGLE_DID_RUN_UPDATER_WIN_H_