mash: Migrate tray IME view to wm common types, move to //ash/common

ash/virtual_keyboard_controller.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/virtual_keyboard_controller.h"
 
 #include <vector>
 
 #include "ash/common/ash_switches.h"
+#include "ash/common/system/tray/wm_system_tray_notifier.h"
 #include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "ui/events/devices/input_device.h"
 #include "ui/events/devices/input_device_manager.h"
 #include "ui/events/devices/touchscreen_device.h"
 #include "ui/keyboard/keyboard_switches.h"
 #include "ui/keyboard/keyboard_util.h"
@@ skipping 87 matching lines @@
                            ->IsMaximizeModeWindowManagerEnabled());
     return;
   }
   bool ignore_internal_keyboard = Shell::GetInstance()
                                       ->maximize_mode_controller()
                                       ->IsMaximizeModeWindowManagerEnabled();
   bool is_internal_keyboard_active =
       has_internal_keyboard_ && !ignore_internal_keyboard;
   SetKeyboardEnabled(!is_internal_keyboard_active && has_touchscreen_ &&
                      (!has_external_keyboard_ || ignore_external_keyboard_));
-  ash::Shell::GetInstance()
+  WmShell::Get()
       ->system_tray_notifier()
       ->NotifyVirtualKeyboardSuppressionChanged(!is_internal_keyboard_active &&
                                                 has_touchscreen_ &&
                                                 has_external_keyboard_);
 }
 
 void VirtualKeyboardController::SetKeyboardEnabled(bool enabled) {
   bool was_enabled = keyboard::IsKeyboardEnabled();
   keyboard::SetTouchKeyboardEnabled(enabled);
   bool is_enabled = keyboard::IsKeyboardEnabled();
   if (is_enabled == was_enabled)
     return;
   if (is_enabled) {
     Shell::GetInstance()->CreateKeyboard();
   } else {
     Shell::GetInstance()->DeactivateKeyboard();
   }
 }
 
 }  // namespace ash