[Mac] Maximise timer slack for background tabs

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 1825 matching lines @@
         'browser/renderer_host/safe_browsing_resource_throttle.cc',
         'browser/renderer_host/safe_browsing_resource_throttle.h',
         'browser/renderer_host/safe_browsing_resource_throttle_factory.cc',
         'browser/renderer_host/safe_browsing_resource_throttle_factory.h',
         'browser/renderer_host/web_cache_manager.cc',
         'browser/renderer_host/web_cache_manager.h',
         'browser/renderer_preferences_util.cc',
         'browser/renderer_preferences_util.h',
         'browser/repost_form_warning_controller.cc',
         'browser/repost_form_warning_controller.h',
+        'browser/resource_throttle.cc',
+        'browser/resource_throttle.cc',

[aiolos (Not reviewing), 2014/05/20 17:45:23]

I assume one of these should be 'browser/resource_throttle.h',

         'browser/resources_util.cc',
         'browser/resources_util.h',
         'browser/rlz/rlz.cc',
         'browser/rlz/rlz.h',
         'browser/safe_browsing/binary_feature_extractor_posix.cc',
         'browser/safe_browsing/binary_feature_extractor_win.cc',
         'browser/safe_browsing/binary_feature_extractor.h',
         'browser/safe_browsing/browser_feature_extractor.cc',
         'browser/safe_browsing/browser_feature_extractor.h',
         'browser/safe_browsing/browser_features.cc',
@@ skipping 1849 matching lines @@
             'package_name': 'org/chromium/chrome/browser',
             'template_deps': ['browser/android/tab_load_status.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }