Offline pages using NQE 2G Slow

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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 3418 matching lines @@
             '../components/components.gyp:navigation_interception',
             '../components/components.gyp:net_log',
             '../components/components.gyp:network_hints_common',
             '../components/components.gyp:network_session_configurator',
             '../components/components.gyp:ntp_snippets',
             '../components/components.gyp:ntp_tiles',
             '../components/components.gyp:packed_ct_ev_whitelist',
             '../components/components.gyp:password_manager_content_browser',
             '../components/components.gyp:password_manager_sync_browser',
             '../components/components.gyp:power',
+            '../components/components.gyp:previews',
             '../components/components.gyp:profile_metrics',
             '../components/components.gyp:proxy_config',
             '../components/components.gyp:renderer_context_menu',
             '../components/components.gyp:safe_browsing_db',
             '../components/components.gyp:safe_json',
             '../components/components.gyp:security_state',
             '../components/components.gyp:sessions_content',
             '../components/components.gyp:ssl_config',
             '../components/components.gyp:storage_monitor',
             '../components/components.gyp:subresource_filter_content_browser',
@@ skipping 895 matching lines @@
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
             'common',
           ],
         },
       ],
     }],
   ],
 }