services: Cleanup class/struct fwd declarations

services/ui/ws/window_tree.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 SERVICES_UI_WS_WINDOW_TREE_H_
 #define SERVICES_UI_WS_WINDOW_TREE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 25 matching lines @@
 class Event;
 }
 
 namespace ui {
 namespace ws {
 
 class AccessPolicy;
 class DisplayManager;
 class Display;
 class DragTargetConnection;
-class EventMatcher;
 class ServerWindow;
 class TargetedEvent;
 class WindowManagerDisplayRoot;
 class WindowManagerState;
 class WindowServer;
-class WindowTreeTest;
 
 namespace test {
 class WindowTreeTestApi;
 }
 
 // WindowTree represents a view onto portions of the window tree. The parts of
 // the tree exposed to the client start at the root windows. A WindowTree may
 // have any number of roots (including none). A WindowTree may not have
 // visibility of all the descendants of its roots.
 //
@@ skipping 517 matching lines @@
       waiting_for_top_level_window_info_;
   bool embedder_intercepts_events_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTree);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_WINDOW_TREE_H_