Remove window/host accessors from WED; IWYU for WTH

ash/sticky_keys/sticky_keys_controller.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 "ash/sticky_keys/sticky_keys_controller.h"
 
 #if defined(USE_X11)
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 #undef RootWindow
 #endif
 
 #include "ash/sticky_keys/sticky_keys_overlay.h"
 #include "base/basictypes.h"
 #include "base/debug/stack_trace.h"
 #include "ui/aura/window.h"
-#include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_tracker.h"
+#include "ui/aura/window_tree_host.h"
 #include "ui/events/event.h"
+#include "ui/events/event_processor.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
 
 namespace ash {
 
 namespace {
 
 // Returns true if the type of mouse event should be modified by sticky keys.
 bool ShouldModifyMouseEvent(ui::MouseEvent* event) {
   ui::EventType type = event->type();
   return type == ui::ET_MOUSE_PRESSED || type == ui::ET_MOUSE_RELEASED ||
@@ skipping 49 matching lines @@
 void StickyKeysHandlerDelegateImpl::DispatchScrollEvent(
     ui::ScrollEvent* event,
     aura::Window* target)  {
   DispatchEvent(event, target);
 }
 
 void StickyKeysHandlerDelegateImpl::DispatchEvent(ui::Event* event,
                                                   aura::Window* target) {
   DCHECK(target);
   ui::EventDispatchDetails details =
-      target->GetHost()->dispatcher()->OnEventFromSource(event);
+      target->GetHost()->event_processor()->OnEventFromSource(event);
   if (details.dispatcher_destroyed)
     return;
 }
 
 }  // namespace
 
 ///////////////////////////////////////////////////////////////////////////////
 //  StickyKeys
 StickyKeysController::StickyKeysController()
     : enabled_(false) {
@@ skipping 407 matching lines @@
           &xievent->mods.effective));
     }
   }
 #elif defined(USE_OZONE)
   NOTIMPLEMENTED() << "Modifier key is not handled";
 #endif
   event->set_flags(event->flags() | modifier_flag_);
 }
 
 }  // namespace ash