Avoid restoring maximized window down when going fullscreen.

ui/views/win/hwnd_message_handler.cc

 // 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.
 
 #include "ui/views/win/hwnd_message_handler.h"
 
 #include <dwmapi.h>
 #include <oleacc.h>
 #include <shellapi.h>
 #include <tchar.h>
@@ skipping 665 matching lines @@
 
 bool HWNDMessageHandler::IsActive() const {
   return GetActiveWindow() == hwnd();
 }
 
 bool HWNDMessageHandler::IsMinimized() const {
   return !!::IsIconic(hwnd());
 }
 
 bool HWNDMessageHandler::IsMaximized() const {
-  return !!::IsZoomed(hwnd());
+  return !!::IsZoomed(hwnd()) && !IsFullscreen();
 }
 
 bool HWNDMessageHandler::IsFullscreen() const {
   return fullscreen_handler_->fullscreen();
 }
 
 bool HWNDMessageHandler::IsAlwaysOnTop() const {
   return (GetWindowLong(hwnd(), GWL_EXSTYLE) & WS_EX_TOPMOST) != 0;
 }
 
@@ skipping 1949 matching lines @@
     delegate_->HandleClientSizeChanged(GetClientAreaBounds().size());
     ResetWindowRegion(false, true);
   }
 
   if (direct_manipulation_helper_)
     direct_manipulation_helper_->SetBounds(bounds_in_pixels);
 }
 
 
 }  // namespace views