Revert of Clean up WindowEventDispatcher some more.

ui/aura/window_tree_host_ozone.cc

 // Copyright 2013 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 "ui/aura/window_tree_host_ozone.h"
 
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/events/ozone/event_factory_ozone.h"
 #include "ui/gfx/ozone/surface_factory_ozone.h"
 #include "ui/ozone/ozone_platform.h"
@@ skipping 92 matching lines @@
 
 void WindowTreeHostOzone::MoveCursorToNative(const gfx::Point& location) {
   gfx::SurfaceFactoryOzone::GetInstance()->MoveCursorTo(location);
 }
 
 void WindowTreeHostOzone::OnCursorVisibilityChangedNative(bool show) {
   NOTIMPLEMENTED();
 }
 
 ui::EventProcessor* WindowTreeHostOzone::GetEventProcessor() {
-  return dispatcher();
+  return delegate_->GetEventProcessor();
 }
 
 // static
 WindowTreeHost* WindowTreeHost::Create(const gfx::Rect& bounds) {
   return new WindowTreeHostOzone(bounds);
 }
 
 // static
 gfx::Size WindowTreeHost::GetNativeScreenSize() {
   NOTIMPLEMENTED();
   return gfx::Size();
 }
 
 }  // namespace aura