Rename MaximizeMode to TabletMode

ash/wm/maximize_mode/maximize_mode_event_handler_aura.cc

-// Copyright 2016 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/wm/maximize_mode/maximize_mode_event_handler_aura.h"
-
-#include "ash/shell.h"
-#include "ui/events/event.h"
-
-namespace ash {
-namespace wm {
-
-MaximizeModeEventHandlerAura::MaximizeModeEventHandlerAura() {
-  Shell::Get()->AddPreTargetHandler(this);
-}
-
-MaximizeModeEventHandlerAura::~MaximizeModeEventHandlerAura() {
-  Shell::Get()->RemovePreTargetHandler(this);
-}
-
-void MaximizeModeEventHandlerAura::OnTouchEvent(ui::TouchEvent* event) {
-  if (ToggleFullscreen(*event))
-    event->StopPropagation();
-}
-
-}  // namespace wm
-}  // namespace ash