Listen to XI_HierarchyChanged events and call setxkbmap when needed.

chrome/browser/browser_main.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 "chrome/browser/browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 127 matching lines @@
 #include "chrome/browser/chromeos/customization_document.h"
 #include "chrome/browser/chromeos/external_metrics.h"
 #include "chrome/browser/chromeos/login/authenticator.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/ownership_service.h"
 #include "chrome/browser/chromeos/login/screen_locker.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/metrics_cros_settings_provider.h"
 #include "chrome/browser/chromeos/net/network_change_notifier_chromeos.h"
 #include "chrome/browser/chromeos/system_key_event_listener.h"
+#include "chrome/browser/chromeos/xinput_hierarchy_changed_event_listener.h"
 #include "chrome/browser/oom_priority_manager.h"
 #include "chrome/browser/ui/views/browser_dialogs.h"
 #endif
 
 // TODO(port): several win-only methods have been pulled out of this, but
 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 // other platforms. For now, it's just a stub. This is a serious work in
 // progress and should not be taken as an indication of a real refactoring.
 
 #if defined(OS_WIN)
@@ skipping 1620 matching lines @@
   // Initialize the brightness observer so that we'll display an onscreen
   // indication of brightness changes during login.
   static chromeos::BrightnessObserver* brightness_observer =
       new chromeos::BrightnessObserver();
   chromeos::CrosLibrary::Get()->GetBrightnessLibrary()->AddObserver(
       brightness_observer);
 
   // Listen for system key events so that the user will be able to adjust the
   // volume on the login screen.
   chromeos::SystemKeyEventListener::GetInstance();
+
+  // TODO(yusukes): Remove the #if once the ARM bot (crbug.com/84694) is fixed.
+#if defined(HAVE_XINPUT2)
+  // Listen for XI_HierarchyChanged events.
+  chromeos::XInputHierarchyChangedEventListener::GetInstance();
+#endif
 #endif
 
   // Initialize extension event routers. Note that on Chrome OS, this will
   // not succeed if the user has not logged in yet, in which case the
   // event routers are initialized in LoginUtilsImpl::CompleteLogin instead.
   if (profile->GetExtensionService()) {
     // This will initialize bookmarks. Call it after bookmark import is done.
     // See issue 40144.
     profile->GetExtensionService()->InitEventRouters();
   }
@@ skipping 158 matching lines @@
 #if defined(OS_CHROMEOS)
   // To be precise, logout (browser shutdown) is not yet done, but the
   // remaining work is negligible, hence we say LogoutDone here.
   chromeos::BootTimesLoader::Get()->AddLogoutTimeMarker("LogoutDone",
                                                         false);
   chromeos::BootTimesLoader::Get()->WriteLogoutTimes();
 #endif
   TRACE_EVENT_END_ETW("BrowserMain", 0, 0);
   return result_code;
 }