Add new tab startup test to the linux & mac build.

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,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 2776 matching lines @@
         'tools/build/win/precompiled.cc',
         'tools/build/win/precompiled.h',
       ],
       'conditions': [
         ['OS=="linux"', {
           'dependencies': [
             'views',
             '../build/linux/system.gyp:gtk',
           ],
         }],
-        ['OS!="win"', {
-          'sources!': [
-            'test/startup/feature_startup_test.cc',
-          ],
-        }],
       ],
     },
     {
       'target_name': 'page_cycler_tests',
       'type': 'executable',
       'dependencies': [
         'chrome_resources',
         'chrome_strings',
         'test_support_ui',
         '../base/base.gyp:base',
@@ skipping 588 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'
 }