Remove "from all browsers" memory details mode

chrome/chrome_tests_unit.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.
 {
   'variables': {
     'chrome_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 178 matching lines @@
       'browser/prefs/command_line_pref_store_unittest.cc',
       'browser/prefs/incognito_mode_prefs_unittest.cc',
       'browser/prefs/profile_pref_store_manager_unittest.cc',
       'browser/prefs/proxy_policy_unittest.cc',
       'browser/prefs/session_startup_pref_unittest.cc',
       'browser/prerender/prerender_history_unittest.cc',
       'browser/prerender/prerender_resource_throttle_unittest.cc',
       'browser/prerender/prerender_unittest.cc',
       'browser/prerender/prerender_util_unittest.cc',
       'browser/private_working_set_snapshot_win_unittest.cc',
-      'browser/process_info_snapshot_mac_unittest.cc',
       'browser/process_singleton_win_unittest.cc',
       'browser/profiles/gaia_info_update_service_unittest.cc',
       'browser/profiles/incognito_mode_policy_handler_unittest.cc',
       'browser/profiles/profile_attributes_storage_unittest.cc',
       'browser/profiles/profile_avatar_icon_util_unittest.cc',
       'browser/profiles/profile_downloader_unittest.cc',
       'browser/profiles/profile_info_cache_unittest.cc',
       'browser/profiles/profile_info_cache_unittest.h',
       'browser/profiles/profile_manager_unittest.cc',
       'browser/profiles/profile_shortcut_manager_unittest_win.cc',
@@ skipping 2793 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }