Make aura_demo work on Mac

chrome/chrome_browser.gypi

 # Copyright 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': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 3321 matching lines @@
             'browser/user_data_dir_extractor.cc',
           ],
           'conditions': [
             ['win_use_allocator_shim==1', {
               'dependencies': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }, {  # 'OS!="win"
-          'sources/': [
+          'sources/': [ 
             # Exclude files that should be excluded for all non-Windows platforms.
             ['exclude', '^browser/first_run/try_chrome_dialog_view.cc'],
             ['exclude', '^browser/first_run/try_chrome_dialog_view.h'],
 
             # Exclude all of hang_monitor.
             ['exclude', '^browser/hang_monitor/'],
           ],
           'conditions': [
             ['use_aura==1', {
               'dependencies': [
-                '../build/linux/system.gyp:dbus',
-                '../build/linux/system.gyp:fontconfig',
-                '../build/linux/system.gyp:x11',
-                '../dbus/dbus.gyp:dbus',
                 '../ui/views/controls/webview/webview.gyp:webview',
                 '../ui/views/views.gyp:views',
               ],
               'include_dirs': [
                 '<(INTERMEDIATE_DIR)',
                 '<(INTERMEDIATE_DIR)/chrome',
               ],
               'sources/': [
-                ['exclude', '^browser/platform_util_common_linux.cc'],
                 ['include', '^browser/printing/print_dialog_cloud.cc'],
                 ['include', '^browser/printing/print_dialog_cloud.h'],
               ],
             }],
-            # GTK build only
-            ['toolkit_uses_gtk==1', {
-              'sources/': [
-                ['exclude', '^browser/lifetime/application_lifetime_stub.cc'],
-              ],
-            }],
             ['gcc_version == 45', {
               # Avoid gcc 4.5 miscompilation of template_url.cc
               # as per http://crbug.com/41887
               'cflags': [
                 '-fno-ipa-cp',
               ],
             }],
           ],
         }],
+        ['OS=="linux"', {
+          'conditions': [
+            ['use_aura==1', {
+              'dependencies': [
+                '../build/linux/system.gyp:dbus',
+                '../build/linux/system.gyp:fontconfig',
+                '../build/linux/system.gyp:x11',
+                '../dbus/dbus.gyp:dbus',
+              ],
+              'sources/': [
+                ['exclude', '^browser/platform_util_common_linux.cc'],
+              ],
+            }],
+            # GTK build only
+            ['toolkit_uses_gtk==1', {
+              'sources/': [
+                ['exclude', '^browser/lifetime/application_lifetime_stub.cc'],
+              ],
+            }],
+          ],
+        }],
         ['enable_plugin_installation==0', {
           'sources!': [
             'browser/plugins/plugin_installer.cc',
             'browser/plugins/plugin_installer.h',
             'browser/plugins/plugin_installer_observer.cc',
             'browser/plugins/plugin_installer_observer.h',
             'browser/plugins/plugins_resource_service.cc',
             'browser/plugins/plugins_resource_service.h',
           ],
         }],
@@ skipping 227 matching lines @@
             'package_name': 'org/chromium/chrome/browser/ui/toolbar',
             'template_deps': ['browser/ui/toolbar/toolbar_model_security_level_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }