Minimal support for OOBE/login for chrome-athena

chrome/browser/chromeos/accessibility/accessibility_manager.cc

 // Copyright (c) 2013 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/chromeos/accessibility/accessibility_manager.h"
 
 #include "ash/audio/sounds.h"
 #include "ash/autoclick/autoclick_controller.h"
 #include "ash/high_contrast/high_contrast_controller.h"
 #include "ash/metrics/user_metrics_recorder.h"
@@ skipping 843 matching lines @@
                           JoinString(preload_engines, ','));
   braille_ime_current_ = false;
 }
 
 // Overridden from InputMethodManager::Observer.
 void AccessibilityManager::InputMethodChanged(
     input_method::InputMethodManager* manager,
     bool show_message) {
 #if defined(USE_ASH)
   // Sticky keys is implemented only in ash.
-  ash::Shell::GetInstance()->sticky_keys_controller()->SetModifiersEnabled(
-      manager->IsISOLevel5ShiftUsedByCurrentInputMethod(),
-      manager->IsAltGrUsedByCurrentInputMethod());
+  if (ash::Shell::HasInstance()) {
+    ash::Shell::GetInstance()->sticky_keys_controller()->SetModifiersEnabled(
+        manager->IsISOLevel5ShiftUsedByCurrentInputMethod(),
+        manager->IsAltGrUsedByCurrentInputMethod());
+  }
 #endif
   const chromeos::input_method::InputMethodDescriptor descriptor =
       manager->GetActiveIMEState()->GetCurrentInputMethod();
   braille_ime_current_ =
       (descriptor.id() == extension_misc::kBrailleImeEngineId);
 }
 
 void AccessibilityManager::SetProfile(Profile* profile) {
   pref_change_registrar_.reset();
   local_state_pref_change_registrar_.reset();
@@ skipping 239 matching lines @@
       chrome_vox_loaded_on_lock_screen_;
 }
 
 void AccessibilityManager::PostUnloadChromeVox(Profile* profile) {
   // Do any teardown work needed immediately after ChromeVox actually unloads.
   if (system_sounds_enabled_)
     ash::PlaySystemSoundAlways(SOUND_SPOKEN_FEEDBACK_DISABLED);
 }
 
 }  // namespace chromeos