Listen to WM_TIMECHANGE messages in RenderViewHostImpl on windows

content/browser/time_zone_monitor_win.h

+// Copyright (c) 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.
+
+#include "ui/gfx/win/singleton_hwnd.h"
+
+namespace content {
+
+class TimeZoneMonitorWin : gfx::SingletonHwnd::Observer {
+ public:
+  TimeZoneMonitorWin();
+  virtual ~TimeZoneMonitorWin();
+
+  // gfx::SingletonHwnd::Observer implementation.
+  virtual void OnWndProc(HWND hwnd,
+                         UINT message,
+                         WPARAM wparam,
+                         LPARAM lparam) OVERRIDE;
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorWin);
+};
+
+}