Allow the cursor to warp even when a window is dragged

ash/wm/workspace/phantom_window_controller.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/workspace/phantom_window_controller.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
+#include "ash/wm/coordinate_conversion.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/animation/slide_animation.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/painter.h"
 #include "ui/views/view.h"
@@ skipping 99 matching lines @@
 
 void PhantomWindowController::CreatePhantomWidget(const gfx::Rect& bounds) {
   DCHECK(!phantom_widget_.get());
   phantom_widget_.reset(new views::Widget);
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
   params.transparent = true;
   params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   // PhantomWindowController is used by FrameMaximizeButton to highlight the
   // launcher button. Put the phantom in the same window as the launcher so that
   // the phantom is visible.
-  params.parent = Shell::GetContainer(
-      Shell::GetInstance()->GetRootWindowMatching(bounds),
-      kShellWindowId_LauncherContainer);
+  params.parent = Shell::GetContainer(wm::GetRootWindowMatching(bounds),
+                                      kShellWindowId_LauncherContainer);
   params.can_activate = false;
   params.keep_on_top = true;
   phantom_widget_->set_focus_on_creation(false);
   phantom_widget_->Init(params);
   phantom_widget_->SetVisibilityChangedAnimationsEnabled(false);
   phantom_widget_->GetNativeWindow()->SetName("PhantomWindow");
   views::View* content_view = new views::View;
   content_view->set_background(
       views::Background::CreateBackgroundPainter(true, new EdgePainter));
   phantom_widget_->SetContentsView(content_view);
   phantom_widget_->SetBounds(bounds);
   phantom_widget_->StackAbove(window_);
   phantom_widget_->Show();
   // Fade the window in.
   ui::Layer* layer = phantom_widget_->GetNativeWindow()->layer();
   layer->SetOpacity(0);
   ui::ScopedLayerAnimationSettings scoped_setter(layer->GetAnimator());
   layer->SetOpacity(1);
 }
 
 }  // namespace internal
 }  // namespace ash