Fix non-Latin key event handling for menu mnemonics

ui/views/controls/menu/menu_key_event_handler.cc

 // Copyright 2015 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/controls/menu/menu_key_event_handler.h"
 
 #include "ui/aura/env.h"
 #include "ui/views/controls/menu/menu_controller.h"
 #include "ui/views/views_delegate.h"
 
@@ skipping 39 matching lines @@
     menu_controller->OnKeyDown(event->key_code());
     // Menu controller might have been deleted.
     if (!MenuController::GetActiveInstance())
       return;
 
     // Do not check mnemonics if the Alt or Ctrl modifiers are pressed. For
     // example Ctrl+<T> is an accelerator, but <T> only is a mnemonic.
     const int flags = event->flags();
     if (menu_controller->exit_type() == MenuController::EXIT_NONE &&
         (flags & kKeyFlagsMask) == 0) {
-      char c = event->GetCharacter();
+      base::char16 c = event->GetCharacter();
       menu_controller->SelectByChar(c);
       // Menu controller might have been deleted.
       if (!MenuController::GetActiveInstance())
         return;
     }
   }
 
   if (!menu_controller->TerminateNestedMessageLoopIfNecessary()) {
     ui::Accelerator accelerator(*event);
     ViewsDelegate::ProcessMenuAcceleratorResult result =
         ViewsDelegate::GetInstance()->ProcessAcceleratorWhileMenuShowing(
             accelerator);
     if (result == ViewsDelegate::ProcessMenuAcceleratorResult::CLOSE_MENU)
       menu_controller->CancelAll();
   }
 }
 
 }  // namespace views