Flip Google Chrome Linux x64 bot from GYP to GN.

tools/mb/mb_config.pyl

 # Copyright 2015 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.
 
 {
   # This is the list of configs that you can pass to mb; each config
   # represents a particular combination of GYP_DEFINES/gn args that
   # we must support. A given config *may* be platform-specific but
   # is not necessarily so (i.e., we might have mac, win, and linux
   # bots all using the 'gn_release_bot' config).
@@ skipping 17 matching lines @@
     'dev_gn_release': ['gn', 'release', 'shared'],
     'dev_gyp_debug': ['gyp', 'debug', 'shared', 'full_symbols'],
     'dev_gyp_release': ['gyp', 'release', 'shared'],
     'embedded_gyp_debug_bot': ['embedded', 'gyp', 'debug_bot'],
     'gn_debug_bot': ['gn', 'debug_bot'],
     'gn_debug_bot_minimal_symbols': ['gn', 'debug_bot_minimal_symbols'],
     'gn_debug_bot_minimal_symbols_x86': ['gn', 'debug_bot_minimal_symbols', 'x86'],
     'gn_debug_static_bot': ['gn', 'debug_static_bot'],
     'gn_linux_upload': ['gn_linux_upload', 'official', 'goma'],
     'gn_official_goma': ['gn', 'official', 'goma'],
+    'gn_official_goma_x86': ['gn', 'official', 'goma', 'x86'],
     'gn_release_bot': ['gn', 'release_bot'],
     'gn_release_bot_minimal_symbols': ['gn', 'release_bot_minimal_symbols'],
     'gn_release_bot_minimal_symbols_x86': ['gn', 'release_bot_minimal_symbols', 'x86'],
     'gn_release_trybot': ['gn', 'release_trybot'],
     'gn_release_trybot_x86': ['gn', 'release_trybot', 'x86'],
     'gyp_debug_bot': ['gyp', 'debug_bot'],
     'gyp_debug_bot_x86': ['gyp', 'debug_bot', 'x86'],
     'gyp_official': ['gyp', 'official'],
     'gyp_official_goma': ['gyp', 'official', 'goma'],
     'gyp_official_goma_chromeos': ['gyp', 'official', 'goma', 'chromeos'],
-    'gyp_official_goma_x86': ['gyp', 'official', 'goma', 'x86'],
     'gyp_official_goma_minimal_symbols': ['gyp', 'official', 'goma', 'minimal_symbols'],
     'gyp_official_goma_minimal_symbols_android': ['gyp', 'official', 'goma', 'minimal_symbols', 'android'],
     'gyp_official_goma_minimal_symbols_android_arm64': ['gyp', 'official', 'goma', 'minimal_symbols', 'android', 'arm64'],
     'gyp_official_goma_minimal_symbols_x64': ['gyp', 'official', 'goma', 'minimal_symbols', 'x64'],
     'gyp_official_goma_minimal_symbols_x86': ['gyp', 'official', 'goma', 'minimal_symbols', 'x86'],
     'gyp_release_bot_arm': ['gyp', 'release_bot', 'arm', 'crosscompile'],
     'gyp_release_trybot': ['gyp', 'release_trybot'],
 
     # This is just for completeness; any bot that uses this config should never actually run MB.
     'none': ['none'],
@@ skipping 256 matching lines @@
   # The builders should be sorted by the order they appear in the /builders
   # page on the buildbots, *not* alphabetically.
   #
   # TODO(crbug.com/481692): Add in remaining bots on the waterfalls.
   'masters': {
     'chrome': {
       'precise64': 'gyp_official',
     },
     'chromium.chrome': {
       'Google Chrome Win': 'gyp_official_goma_minimal_symbols_x86',
-      'Google Chrome Linux': 'gyp_official_goma_x86',
+      'Google Chrome Linux': 'gn_official_goma_x86',
       'Google Chrome Linux x64': 'gyp_official_goma',
       'Google Chrome Mac': 'gyp_official_goma',
       'Google Chrome ChromeOS': 'gyp_official_goma_chromeos',
     },
     'chromium.chromiumos': {
       'Linux ChromiumOS GN': 'chromeos_gn_release_bot',
       'Linux ChromiumOS GN (dbg)': 'chromeos_gn_debug_bot',
     },
     'chromium.linux': {
       'Linux Builder': 'swarming_gn_release_bot',
@@ skipping 135 matching lines @@
       'win8_chromium_gn_rel': 'gn_release_trybot_x86',
       'win8_chromium_gn_upload': 'gn_release_bot_minimal_symbols_x86',
       'win_clang_x64_dbg': 'win_clang_debug_bot',
     },
     'tryserver.v8': {
       'v8_linux_chromium_gn_rel': 'gn_release_trybot',
       'v8_android_chromium_gn_dbg': 'android_gn_debug_bot',
     },
   },
 }