Don't check autohide taskbar for WS_EX_TOPMOST when we are querying the autohide state.

ui/views/win/hwnd_message_handler.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 UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 #define UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 
 #include <windows.h>
 
 #include <stddef.h>
@@ skipping 289 matching lines @@
   // Calls DefWindowProc, safely wrapping the call in a ScopedRedrawLock to
   // prevent frame flicker. DefWindowProc handling can otherwise render the
   // classic-look window title bar directly.
   LRESULT DefWindowProcWithRedrawLock(UINT message,
                                       WPARAM w_param,
                                       LPARAM l_param);
 
   // Lock or unlock the window from being able to redraw itself in response to
   // updates to its invalid region.
   class ScopedRedrawLock;
-  void LockUpdates(bool force);
-  void UnlockUpdates(bool force);
+  void LockUpdates();
+  void UnlockUpdates();
 
   // Stops ignoring SetWindowPos() requests (see below).
   void StopIgnoringPosChanges() { ignore_window_pos_changes_ = false; }
 
   // Attempts to force the window to be redrawn, ensuring that it gets
   // onscreen.
   void ForceRedrawWindow(int attempts);
 
   // Returns whether Windows should help with frame rendering (i.e. we're using
   // the glass frame).
@@ skipping 378 matching lines @@
 
   // The factory used with BEGIN_SAFE_MSG_MAP_EX.
   base::WeakPtrFactory<HWNDMessageHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HWNDMessageHandler);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_