It's a copy of http://codereview.chromium.org/155772, with the fix for valgri...

chrome/chrome.gyp

 # Copyright (c) 2009 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,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 3565 matching lines @@
         'browser/errorpage_uitest.cc',
         'browser/extensions/extension_uitest.cc',
         'browser/history/redirect_uitest.cc',
         'browser/iframe_uitest.cc',
         'browser/images_uitest.cc',
         'browser/locale_tests_uitest.cc',
         'browser/login_prompt_uitest.cc',
         'browser/media_uitest.cc',
         'browser/metrics/metrics_service_uitest.cc',
         'browser/printing/printing_layout_uitest.cc',
+        'browser/process_singleton_linux_uitest.cc',
         'browser/renderer_host/resource_dispatcher_host_uitest.cc',
         'browser/sanity_uitest.cc',
         'browser/session_history_uitest.cc',
         'browser/sessions/session_restore_uitest.cc',
         'browser/tab_contents/view_source_uitest.cc',
         'browser/tab_restore_uitest.cc',
         'browser/unload_uitest.cc',
         'browser/views/find_bar_win_uitest.cc',
         'common/logging_chrome_uitest.cc',
         'common/pref_service_uitest.cc',
@@ skipping 19 matching lines @@
         ['OS=="linux"', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
           'sources!': [
             # TODO(port)
             'browser/login_prompt_uitest.cc',
             'test/reliability/page_load_test.cc',
             'test/ui/layout_plugin_uitest.cc',
           ],
+        }, { # else: OS != "linux"
+          'sources!': [
+            'browser/process_singleton_linux_uitest.cc',
+          ],
         }],
         ['OS=="linux" and toolkit_views==1', {
           'dependencies': [
             '../views/views.gyp:views',
           ],
         }],
         ['OS=="mac"', {
           'sources!': [
             # TODO(port)
             'app/chrome_main_uitest.cc',
@@ skipping 1588 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }