Allow keys with AltGr modifier to be inserted in Textfield

content/browser/renderer_host/native_web_keyboard_event_aura.cc

 // Copyright (c) 2011 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 "content/public/browser/native_web_keyboard_event.h"
 
 #include "base/logging.h"
 #include "content/browser/renderer_host/web_input_event_aura.h"
 #include "ui/events/base_event_utils.h"
 #include "ui/events/event.h"
@@ skipping 67 matching lines @@
     default:
       NOTREACHED();
   }
 
   modifiers = EventFlagsToWebInputEventModifiers(state);
   timeStampSeconds = time_stamp_seconds;
   windowsKeyCode = character;
   nativeKeyCode = character;
   text[0] = character;
   unmodifiedText[0] = character;
-  isSystemKey =
-      ui::IsSystemKeyModifier(state) && (state & ui::EF_ALTGR_DOWN) == 0;
+  isSystemKey = ui::IsSystemKeyModifier(state);
   setKeyIdentifierFromWindowsKeyCode();
 }
 
 NativeWebKeyboardEvent& NativeWebKeyboardEvent::operator=(
     const NativeWebKeyboardEvent& other) {
   WebKeyboardEvent::operator=(other);
   delete os_event;
   os_event = CopyEvent(other.os_event);
   skip_in_browser = other.skip_in_browser;
   match_edit_command = other.match_edit_command;
   return *this;
 }
 
 NativeWebKeyboardEvent::~NativeWebKeyboardEvent() {
   delete os_event;
 }
 
 }  // namespace content