Move ash specific cursor code to CursorManager.

ash/wm/toplevel_window_event_handler.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/wm/toplevel_window_event_handler.h"
 
 #include "ash/shell.h"
 #include "ash/wm/default_window_resizer.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/resize_shadow_controller.h"
 #include "ash/wm/window_resizer.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace/snap_sizer.h"
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "ui/aura/client/aura_constants.h"
+#include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/cursor/cursor.h"
 #include "ui/base/events/event.h"
 #include "ui/base/gestures/gesture_recognizer.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/ui_base_types.h"
@@ skipping 242 matching lines @@
     in_gesture_resize_ = true;
     bool has_point = root_window->gesture_recognizer()->
         GetLastTouchPointForTarget(source, &drag_location);
     DCHECK(has_point);
   } else {
     drag_location = root_window->GetLastMouseLocationInRoot();
     aura::Window::ConvertPointToTarget(
         root_window, source->parent(), &drag_location);
   }
   CreateScopedWindowResizer(source, drag_location, HTCAPTION);
-  source->GetRootWindow()->SetCursor(ui::kCursorPointer);
+  aura::client::CursorClient* cursor_client =
+      aura::client::GetCursorClient(root_window);
+  if (cursor_client)
+    cursor_client->SetCursor(ui::kCursorPointer);
 #if !defined(OS_MACOSX)
   MessageLoopForUI* loop = MessageLoopForUI::current();
   MessageLoop::ScopedNestableTaskAllower allow_nested(loop);
   base::RunLoop run_loop(aura::Env::GetInstance()->GetDispatcher());
   quit_closure_ = run_loop.QuitClosure();
   run_loop.Run();
 #endif  // !defined(OS_MACOSX)
   in_gesture_resize_ = in_move_loop_ = false;
   return move_cancelled_ ? aura::client::MOVE_CANCELED :
       aura::client::MOVE_SUCCESSFUL;
@@ skipping 100 matching lines @@
 void ToplevelWindowEventHandler::ResizerWindowDestroyed() {
   // We explicitly don't invoke RevertDrag() since that may do things to window.
   // Instead we destroy the resizer.
   window_resizer_.reset();
 
   // End the move loop. This does nothing if we're not in a move loop.
   EndMoveLoop();
 }
 
 }  // namespace ash