Re-land: Resurrect Aura Linux accessibility.

ui/accessibility/accessibility.gyp

 # Copyright 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 25 matching lines @@
         'ax_text_utils.h',
         'ax_tree.cc',
         'ax_tree.h',
         'ax_tree_serializer.cc',
         'ax_tree_serializer.h',
         'ax_tree_source.h',
         'ax_tree_update.cc',
         'ax_tree_update.h',
         'ax_view_state.cc',
         'ax_view_state.h',
+        'platform/atk_util_auralinux.cc',
+        'platform/atk_util_auralinux.h',
         'platform/ax_platform_node.cc',
         'platform/ax_platform_node.h',
+        'platform/ax_platform_node_auralinux.cc',
+        'platform/ax_platform_node_auralinux.h',
         'platform/ax_platform_node_base.cc',
         'platform/ax_platform_node_base.h',
         'platform/ax_platform_node_delegate.h',
         'platform/ax_platform_node_mac.h',
         'platform/ax_platform_node_mac.mm',
         'platform/ax_platform_node_win.h',
         'platform/ax_platform_node_win.cc',
       ],
       'conditions': [
         ['OS=="win"', {
           'dependencies': [
             '../../third_party/iaccessible2/iaccessible2.gyp:iaccessible2'
           ],
         }],
+        ['OS=="linux" and chromeos==0 and use_x11==1', {
+          'dependencies': [
+            '../../build/linux/system.gyp:atk',
+            '../../build/linux/system.gyp:gconf',
+            '../../build/linux/system.gyp:glib',
+          ],
+          'variables': {
+            'clang_warning_flags': [
+              # glib uses the pre-c++11 typedef-as-static_assert hack.
+              '-Wno-unused-local-typedefs',
+            ],
+          },
+        }],
+        ['OS!="linux" or chromeos==1 or use_x11==0', {
+          'sources!': [
+            'platform/ax_platform_node_auralinux.cc',
+            'platform/ax_platform_node_auralinux.h',
+            'platform/atk_util_auralinux.cc',
+            'platform/atk_util_auralinux.h',
+          ],
+        }],
       ],
     },
     {
       'target_name': 'accessibility_test_support',
       'type': 'static_library',
       'dependencies': [
         '../../base/base.gyp:base',
         'accessibility'
       ],
       'sources': [
@@ skipping 80 matching lines @@
               'dependencies': [
                 '../../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }