Move DIP translation from ui/aura to ui/compositor

ui/gfx/compositor/compositor.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 16 matching lines @@
       'sources': [
         'compositor.cc',
         'compositor.h',
         'compositor_export.h',
         'compositor_observer.h',
         'compositor_setup.h',
         'compositor_switches.cc',
         'compositor_switches.h',
         'debug_utils.cc',
         'debug_utils.h',
+        'dip_util.cc',
+        'dip_util.h',
         'layer.cc',
         'layer.h',
         'layer_animation_delegate.h',
         'layer_animation_element.cc',
         'layer_animation_element.h',
         'layer_animation_observer.cc',
         'layer_animation_observer.h',
         'layer_animation_sequence.cc',
         'layer_animation_sequence.h',
         'layer_animator.cc',
@@ skipping 81 matching lines @@
         # osmesa GL implementation is used on linux.
         ['OS=="linux"', {
           'dependencies': [
             '<(DEPTH)/third_party/mesa/mesa.gyp:osmesa',
           ],
         }],
       ],
     },
   ],
 }