Rework ash::CursorManager into a corewm object, to share code with desktop.

ash/tooltips/tooltip_controller_unittest.cc

 // Copyright (c) 2012 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/display/display_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/tooltips/tooltip_controller.h"
-#include "ash/wm/cursor_manager.h"
 #include "base/utf_string_conversions.h"
 #include "ui/aura/client/tooltip_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/event_generator.h"
 #include "ui/aura/window.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/text/text_elider.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/point.h"
@@ skipping 508 matching lines @@
   // be able to show tooltips on the primary display.
   aura::test::EventGenerator generator1(root_windows[0]);
   generator1.MoveMouseRelativeTo(widget1->GetNativeView(),
                                  view1->bounds().CenterPoint());
   FireTooltipTimer();
   EXPECT_TRUE(IsTooltipVisible());
 }
 
 }  // namespace test
 }  // namespace ash