events: Move some files into ui/base/events/

ash/drag_drop/drag_drop_tracker.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/drag_drop/drag_drop_tracker.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ui/aura/root_window.h"
-#include "ui/base/event.h"
+#include "ui/base/events/event.h"
 #include "ui/gfx/screen.h"
 
 namespace {
 
 // Creates a window for capturing drag events.
 aura::Window* CreateCaptureWindow(aura::RootWindow* root_window) {
   aura::Window* window = new aura::Window(NULL);
   window->SetType(aura::client::WINDOW_TYPE_NORMAL);
   window->Init(ui::LAYER_NOT_DRAWN);
   window->SetParent(NULL);
@@ skipping 37 matching lines @@
       ash::wm::GetRootWindowRelativeToWindow(capture_window_->GetRootWindow(),
                                              event.root_location());
   return new ui::MouseEvent(event.type(),
                             location_pair.second,
                             root_location_pair.second,
                             event.flags());
 }
 
 }  // namespace internal
 }  // namespace ash