linux_aura: Enable HIDPI support

ui/ui_unittests.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'ui_test_support',
       'dependencies': [
         '../base/base.gyp:base',
@@ skipping 273 matching lines @@
                ],
             }],
             ['toolkit_views==1', {
               'sources!': [
                 'browser/ui/gtk/gtk_expanded_container_unittest.cc',
               ],
             }],
           ],
         }],
         ['use_x11==1', {
+          'sources': [
+            'base/x/x11_util_unittest.cc',

[Daniel Erat, 2013/10/29 16:27:03]

i think that the usual pattern i've seen is to list all source files in
'all_sources' above and later do exclusions via conditions. you may not need to
exclude this file at all, though, as i think that there are already broad
conditions that will exclude this file on non-X11 platforms (see
build/filename_rules.gypi).

+          ],
           'dependencies': [
             '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
           ],
         }],
         ['toolkit_uses_gtk == 1', {
           'sources': [
             'base/dragdrop/gtk_dnd_util_unittest.cc',
           ],
           'dependencies': [
             '../build/linux/system.gyp:gtk',
@@ skipping 69 matching lines @@
           'variables': {
             'test_suite_name': 'ui_unittests',
             'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)ui_unittests<(SHARED_LIB_SUFFIX)',
           },
           'includes': [ '../build/apk_test.gypi' ],
         },
       ],
     }],
   ],
 }