Move Aura to UI subdir.

aura/hit_test.h

Index: aura/hit_test.h
===================================================================
--- aura/hit_test.h	(revision 100961)
+++ aura/hit_test.h	(working copy)
@@ -1,42 +0,0 @@
-// Copyright (c) 2011 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 AURA_HIT_TEST_H_
-#define AURA_HIT_TEST_H_
-#pragma once
-
-// Defines the same symbolic names used by the WM_NCHITTEST Notification under
-// win32 (the integer values are not guaranteed to be equivalent). We do this
-// because we have a whole bunch of code that deals with window resizing and
-// such that requires these values.
-enum HitTestCompat {
-  HTBORDER = 1,
-  HTBOTTOM,
-  HTBOTTOMLEFT,
-  HTBOTTOMRIGHT,
-  HTCAPTION,
-  HTCLIENT,
-  HTCLOSE,
-  HTERROR,
-  HTGROWBOX,
-  HTHELP,
-  HTHSCROLL,
-  HTLEFT,
-  HTMENU,
-  HTMAXBUTTON,
-  HTMINBUTTON,
-  HTNOWHERE,
-  HTREDUCE,
-  HTRIGHT,
-  HTSIZE,
-  HTSYSMENU,
-  HTTOP,
-  HTTOPLEFT,
-  HTTOPRIGHT,
-  HTTRANSPARENT,
-  HTVSCROLL,
-  HTZOOM
-};
-
-#endif  // AURA_HIT_TEST_H_