Promotes more accessors from WmShell to Shell

ash/common/system/ime/tray_ime_chromeos_unittest.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/common/system/ime/tray_ime_chromeos.h"
 
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/system/chromeos/ime_menu/ime_list_view.h"
 #include "ash/common/system/tray/system_tray_notifier.h"
@@ skipping 47 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TrayIMETest);
 };
 
 void TrayIMETest::SetAccessibilityKeyboardEnabled(bool enabled) {
   Shell::GetInstance()->accessibility_delegate()->SetVirtualKeyboardEnabled(
       enabled);
   keyboard::SetAccessibilityKeyboardEnabled(enabled);
   AccessibilityNotificationVisibility notification =
       enabled ? A11Y_NOTIFICATION_SHOW : A11Y_NOTIFICATION_NONE;
-  WmShell::Get()->system_tray_notifier()->NotifyAccessibilityModeChanged(
+  Shell::Get()->system_tray_notifier()->NotifyAccessibilityModeChanged(
       notification);
 }
 
 void TrayIMETest::SetIMELength(int length) {
   tray_->ime_list_.clear();
   IMEInfo ime;
   for (int i = 0; i < length; i++) {
     tray_->ime_list_.push_back(ime);
   }
   tray_->Update();
@@ skipping 118 matching lines @@
   // Clicking again should disable the keyboard.
   toggle = GetToggleView();
   tap = ui::GestureEvent(0, 0, 0, base::TimeTicks(),
                          ui::GestureEventDetails(ui::ET_GESTURE_TAP));
   toggle->OnGestureEvent(&tap);
   EXPECT_FALSE(keyboard::IsKeyboardEnabled());
   EXPECT_TRUE(default_view()->visible());
 }
 
 }  // namespace ash