mash: Migrate AccessibilityDelegate access to WmShell.

ash/accelerators/spoken_feedback_toggler.cc

 // 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.
 
 #include "ash/accelerators/spoken_feedback_toggler.h"
 
 #include <utility>
 
 #include "ash/accelerators/key_hold_detector.h"
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
-#include "ash/shell.h"
+#include "ash/common/wm_shell.h"
 #include "ui/events/event.h"
 
 namespace ash {
 namespace {
 bool speech_feedback_toggler_enabled = false;
 }
 
 // static
 bool SpokenFeedbackToggler::IsEnabled() {
   return speech_feedback_toggler_enabled;
@@ skipping 23 matching lines @@
 }
 
 bool SpokenFeedbackToggler::ShouldStopEventPropagation() const {
   // Let hotkey events pass through. See http://crbug.com/526729
   return false;
 }
 
 void SpokenFeedbackToggler::OnKeyHold(const ui::KeyEvent* event) {
   if (!toggled_) {
     toggled_ = true;
-    Shell::GetInstance()->accessibility_delegate()->ToggleSpokenFeedback(
+    WmShell::Get()->GetAccessibilityDelegate()->ToggleSpokenFeedback(
         A11Y_NOTIFICATION_SHOW);
   }
 }
 
 void SpokenFeedbackToggler::OnKeyUnhold(const ui::KeyEvent* event) {
   toggled_ = false;
 }
 
 SpokenFeedbackToggler::SpokenFeedbackToggler() : toggled_(false) {}
 
 SpokenFeedbackToggler::~SpokenFeedbackToggler() {}
 
 }  // namespace ash