Keyboard Lock Host implementation

ui/events/platform/x11/x11_event_source.h

 // Copyright 2014 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_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_
 #define UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/optional.h"
+#include "components/keyboard_lock/platform_key_event_filter.h"
 #include "ui/events/events_export.h"
 #include "ui/gfx/x/x11_types.h"
 
 using Time = unsigned long;
 using XEvent = union _XEvent;
 using XID = unsigned long;
 using XWindow = unsigned long;
 
 namespace gfx {
 class Point;
@@ skipping 56 matching lines @@
   // current event does not have a timestamp.
   Time GetTimestamp();
 
   // Returns the root pointer location only if there is an event being
   // dispatched that contains that information.
   base::Optional<gfx::Point> GetRootCursorLocationFromCurrentEvent() const;
 
   void StopCurrentEventStream();
   void OnDispatcherListChanged();
 
+  void set_platform_key_event_filter(
+      keyboard_lock::PlatformKeyEventFilter* filter);
+
  protected:
   // Extracts cookie data from |xevent| if it's of GenericType, and dispatches
   // the event. This function also frees up the cookie data after dispatch is
   // complete.
   void ExtractCookieDataDispatchEvent(XEvent* xevent);
 
   // Handles updates after event has been dispatched.
   void PostDispatchEvent(XEvent* xevent);
 
   // Block until receiving a structure notify event of |type| on |window|.
@@ skipping 20 matching lines @@
   XWindow dummy_window_;
   XAtom dummy_atom_;
   std::unique_ptr<XScopedEventSelector> dummy_window_events_;
 
   // Keeps track of whether this source should continue to dispatch all the
   // available events.
   bool continue_stream_ = true;
 
   std::unique_ptr<X11HotplugEventHandler> hotplug_event_handler_;
 
+  keyboard_lock::PlatformKeyEventFilter* filter_ = nullptr;
+
   DISALLOW_COPY_AND_ASSIGN(X11EventSource);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_