[Ozone] Proper cursor support for multi-monitor configurations

ui/base/cursor/ozone/cursor_factory_ozone.h

 // Copyright 2014 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.
 
 #ifndef UI_BASE_CURSOR_OZONE_CURSOR_FACTORY_OZONE_H_
 #define UI_BASE_CURSOR_OZONE_CURSOR_FACTORY_OZONE_H_
 
 #include "ui/base/cursor/cursor.h"
 #include "ui/base/ui_base_export.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 25 matching lines @@
   // Increment platform image cursor refcount.
   virtual void RefImageCursor(PlatformCursor cursor);
 
   // Decrement platform image cursor refcount.
   virtual void UnrefImageCursor(PlatformCursor cursor);
 
   // Change the active cursor for an AcceleratedWidget.
   // TODO(spang): Move this.
   virtual void SetCursor(gfx::AcceleratedWidget widget, PlatformCursor cursor);
 
+  // Returns the window on which the cursor is active.
+  // TODO(dnicoara) Move this once the WindowTreeHost refactoring finishes and
+  // WindowTreeHost::CanDispatchEvent() is no longer present.
+  virtual gfx::AcceleratedWidget GetActiveWindow();
+
  private:
   static CursorFactoryOzone* impl_;  // not owned
 };
 
 }  // namespace gfx
 
 #endif  // UI_BASE_CURSOR_OZONE_CURSOR_FACTORY_OZONE_H_