Fix coredump in Accessibility Manager SetProfile on shutdown.

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 "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
@@ skipping 724 matching lines @@
   PrefService* pref_service = profile_->GetPrefs();
   pref_service->SetBoolean(prefs::kAccessibilityAutoclickEnabled, enabled);
   pref_service->CommitPendingWrite();
 }
 
 bool AccessibilityManager::IsAutoclickEnabled() {
   return autoclick_enabled_;
 }
 
 void AccessibilityManager::UpdateAutoclickFromPref() {
+  if (!profile_)
+    return;
+
   bool enabled =
       profile_->GetPrefs()->GetBoolean(prefs::kAccessibilityAutoclickEnabled);
 
   if (autoclick_enabled_ == enabled)
     return;
   autoclick_enabled_ = enabled;
 
 #if defined(USE_ASH) && !defined(USE_ATHENA)
   ash::Shell::GetInstance()->autoclick_controller()->SetEnabled(enabled);
 #endif
 }
 
 void AccessibilityManager::SetAutoclickDelay(int delay_ms) {
   if (!profile_)
     return;
 
   PrefService* pref_service = profile_->GetPrefs();
   pref_service->SetInteger(prefs::kAccessibilityAutoclickDelayMs, delay_ms);
   pref_service->CommitPendingWrite();
 }
 
 int AccessibilityManager::GetAutoclickDelay() const {
   return autoclick_delay_ms_;
 }
 
 void AccessibilityManager::UpdateAutoclickDelayFromPref() {
+  if (!profile_)
+    return;
+
   int autoclick_delay_ms =
       profile_->GetPrefs()->GetInteger(prefs::kAccessibilityAutoclickDelayMs);
 
   if (autoclick_delay_ms == autoclick_delay_ms_)
     return;
   autoclick_delay_ms_ = autoclick_delay_ms;
 
 #if defined(USE_ASH) && !defined(USE_ATHENA)
   ash::Shell::GetInstance()->autoclick_controller()->SetAutoclickDelay(
       autoclick_delay_ms_);
@@ skipping 372 matching lines @@
   // Do any teardown work needed immediately after ChromeVox actually unloads.
   if (system_sounds_enabled_)
     ash::PlaySystemSoundAlways(SOUND_SPOKEN_FEEDBACK_DISABLED);
 #endif
   // Clear the accessibility focus ring.
   AccessibilityFocusRingController::GetInstance()->SetFocusRing(
       std::vector<gfx::Rect>());
 }
 
 }  // namespace chromeos