Use KF_ALTDOWN flag instead of GetKeyState(VK_MENU)

chrome/browser/autocomplete/autocomplete_edit_view_win.cc

 // Copyright (c) 2009 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 "chrome/browser/autocomplete/autocomplete_edit_view_win.h"
 
 #include <locale>
 
 #include "app/clipboard/clipboard.h"
 #include "app/clipboard/scoped_clipboard_writer.h"
@@ skipping 1301 matching lines @@
   if (key == VK_CONTROL)
     model_->OnControlKeyChanged(false);
 
   // On systems with RTL input languages, ctrl+shift toggles the reading order
   // (depending on which shift key is pressed). But by default the CRichEditCtrl
   // only changes the current reading order, and as soon as the user deletes all
   // the text, or we call SetWindowText(), it reverts to the "default" order.
   // To work around this, if the user hits ctrl+shift, we pass it to
   // DefWindowProc() while the edit is empty, which toggles the default reading
   // order; then we restore the user's input.
-  if ((GetKeyState(VK_MENU) == 0) &&
+  if (!(flags & KF_ALTDOWN) &&
       (((key == VK_CONTROL) && (GetKeyState(VK_SHIFT) < 0)) ||
        ((key == VK_SHIFT) && (GetKeyState(VK_CONTROL) < 0)))) {
     ScopedFreeze freeze(this, GetTextObjectModel());
 
     std::wstring saved_text(GetText());
     CHARRANGE saved_sel;
     GetSelection(saved_sel);
 
     SetWindowText(L"");
 
@@ skipping 1090 matching lines @@
     context_menu_contents_->AddItemWithStringId(IDS_PASTE_AND_GO,
                                                 IDS_PASTE_AND_GO);
     context_menu_contents_->AddSeparator();
     context_menu_contents_->AddItemWithStringId(IDS_SELECT_ALL, IDS_SELECT_ALL);
     context_menu_contents_->AddSeparator();
     context_menu_contents_->AddItemWithStringId(IDS_EDIT_SEARCH_ENGINES,
                                                 IDS_EDIT_SEARCH_ENGINES);
   }
   context_menu_.reset(new views::Menu2(context_menu_contents_.get()));
 }