Fix "unused variable" warnings.

chrome/browser/chrome_browser_main.h

 // Copyright (c) 2012 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_CHROME_BROWSER_MAIN_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 148 matching lines @@
   StackSamplingConfiguration sampling_profiler_config_;
 
   // A profiler that periodically samples stack traces. Used to sample startup
   // behavior.
   base::StackSamplingProfiler sampling_profiler_;
 
   // Members initialized after / released before main_message_loop_ ------------
 
   std::unique_ptr<BrowserProcessImpl> browser_process_;
   scoped_refptr<metrics::TrackingSynchronizer> tracking_synchronizer_;
+
 #if !defined(OS_ANDROID)
   // Browser creation happens on the Java side in Android.
   std::unique_ptr<StartupBrowserCreator> browser_creator_;
 
   // Android doesn't support multiple browser processes, so it doesn't implement
   // ProcessSingleton.
   std::unique_ptr<ChromeProcessSingleton> process_singleton_;
 
   // Android's first run is done in Java instead of native.
   std::unique_ptr<first_run::MasterPrefs> master_prefs_;
+
+  ProcessSingleton::NotifyResult notify_result_ =
+      ProcessSingleton::PROCESS_NONE;
+
+  // Members needed across shutdown methods.
+  bool restart_last_session_ = false;
 #endif
+
   Profile* profile_;
   bool run_message_loop_;
-  ProcessSingleton::NotifyResult notify_result_;
   std::unique_ptr<ThreeDAPIObserver> three_d_observer_;
 
   // Initialized in SetupMetricsAndFieldTrials.
   scoped_refptr<FieldTrialSynchronizer> field_trial_synchronizer_;
 
   // Members initialized in PreMainMessageLoopRun, needed in
   // PreMainMessageLoopRunThreadsCreated.
   PrefService* local_state_;
   base::FilePath user_data_dir_;
 
-  // Members needed across shutdown methods.
-  bool restart_last_session_;
-
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainParts);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_