Improve scroll performance on Windows 10 with high precision touchpads.

ui/gfx/gfx.gyp

 # Copyright (c) 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 278 matching lines @@
         'text_utils_ios.mm',
         'text_utils_skia.cc',
         'transform.cc',
         'transform.h',
         'transform_util.cc',
         'transform_util.h',
         'ui_gfx_exports.cc',
         'utf16_indexing.cc',
         'utf16_indexing.h',
         'vsync_provider.h',
+        'win/direct_manipulation.cc',
+        'win/direct_manipulation.h',
         'win/direct_write.cc',
         'win/direct_write.h',
         'win/dpi.cc',
         'win/dpi.h',
         'win/hwnd_util.cc',
         'win/hwnd_util.h',
         'win/metro_mode.cc',
         'win/metro_mode.h',
         'win/scoped_set_map_mode.h',
         'win/singleton_hwnd.cc',
@@ skipping 241 matching lines @@
          ],
          'variables': {
            'jni_gen_package': 'ui/gfx',
          },
          'includes': [ '../../build/jni_generator.gypi' ],
        },
      ],
     }],
   ],
 }