aura: Require explicit ownership of the Env instance.

content/browser/browser_main_loop.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 CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "content/browser/browser_process_sub_thread.h"
 #include "content/public/browser/browser_main_runner.h"
 
+#if defined(USE_AURA)
+namespace aura {
+class Env;
+}
+#endif
+
 namespace base {
 class CommandLine;
 class FilePath;
 class HighResolutionTimerManager;
 class MessageLoop;
 class PowerMonitor;
 class SystemMonitor;
 class MemoryPressureMonitor;
 namespace trace_event {
 class TraceEventSystemStatsMonitor;
@@ skipping 167 matching lines @@
   std::unique_ptr<base::PowerMonitor> power_monitor_;
   std::unique_ptr<base::HighResolutionTimerManager> hi_res_timer_manager_;
   std::unique_ptr<net::NetworkChangeNotifier> network_change_notifier_;
 
   // Per-process listener for online state changes.
   std::unique_ptr<BrowserOnlineStateObserver> online_state_observer_;
 
   std::unique_ptr<base::trace_event::TraceEventSystemStatsMonitor>
       system_stats_monitor_;
 
+#if defined(USE_AURA)
+  std::unique_ptr<aura::Env> env_;
+#endif
+
 #if defined(OS_WIN)
   std::unique_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
 #endif
 
 #if defined(OS_ANDROID)
   // Android implementation of ScreenOrientationDelegate
   std::unique_ptr<ScreenOrientationDelegate> screen_orientation_delegate_;
 #endif
 
   std::unique_ptr<MemoryObserver> memory_observer_;
@@ skipping 56 matching lines @@
   std::unique_ptr<TimeZoneMonitor> time_zone_monitor_;
 
   // DO NOT add members here. Add them to the right categories above.
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_