Move AccessibilityDelegate ownership to ash::WmShell

chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.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 "ui/chromeos/touch_exploration_controller.h"
 
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/wm_shell.h"
 #include "ash/shell.h"
@@ skipping 40 matching lines @@
     root_window_->AddPreTargetHandler(event_handler_.get());
   }
 
   void TearDownOnMainThread() override {
     SwitchTouchExplorationMode(false);
     root_window_->RemovePreTargetHandler(event_handler_.get());
   }
 
   void SwitchTouchExplorationMode(bool on) {
     ash::AccessibilityDelegate* delegate =
-        ash::WmShell::Get()->GetAccessibilityDelegate();
+        ash::WmShell::Get()->accessibility_delegate();
     if (on != delegate->IsSpokenFeedbackEnabled())
       delegate->ToggleSpokenFeedback(ash::A11Y_NOTIFICATION_NONE);
   }
 
   base::TimeTicks Now() { return simulated_clock_->NowTicks(); }
 
   ui::GestureDetector::Config gesture_detector_config_;
   base::SimpleTestTickClock* simulated_clock_;
   aura::Window* root_window_;
   std::unique_ptr<ui::test::TestEventHandler> event_handler_;
@@ skipping 168 matching lines @@
   EXPECT_EQ(2, event_handler_->num_touch_events());
   event_handler_->Reset();
 
   // Continuing to move the touch exploration finger should send more mouse
   // events.
   generator.MoveTouchId(gfx::Point(509, 609), 1);
   EXPECT_EQ(0, event_handler_->num_touch_events());
   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
   EXPECT_FALSE(cursor_client->IsCursorVisible());
 }