(fix landed) Reland of name MaximizeMode to TabletMode

ash/wm/tablet_mode/tablet_mode_event_handler_aura.cc

Index: ash/wm/tablet_mode/tablet_mode_event_handler_aura.cc
diff --git a/ash/wm/tablet_mode/tablet_mode_event_handler_aura.cc b/ash/wm/tablet_mode/tablet_mode_event_handler_aura.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e3263585fe0f918b45d1accbb4964be88d6cfdb8
--- /dev/null
+++ b/ash/wm/tablet_mode/tablet_mode_event_handler_aura.cc
@@ -0,0 +1,27 @@
+// 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/tablet_mode/tablet_mode_event_handler_aura.h"
+
+#include "ash/shell.h"
+#include "ui/events/event.h"
+
+namespace ash {
+namespace wm {
+
+TabletModeEventHandlerAura::TabletModeEventHandlerAura() {
+  Shell::Get()->AddPreTargetHandler(this);
+}
+
+TabletModeEventHandlerAura::~TabletModeEventHandlerAura() {
+  Shell::Get()->RemovePreTargetHandler(this);
+}
+
+void TabletModeEventHandlerAura::OnTouchEvent(ui::TouchEvent* event) {
+  if (ToggleFullscreen(*event))
+    event->StopPropagation();
+}
+
+}  // namespace wm
+}  // namespace ash