[reclient] Add 'Linux Builder (reclient)' and corresponding config/mixins to enable re-client

Bug: 1141780
Change-Id: I0eac786673ac31f68128059d627d7156c6a8d653
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2631894Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Reviewed-by: Yoshisato Yanagisawa <yyanagisawa@google.com>
Commit-Queue: Ye Kuang <yekuang@google.com>
Cr-Commit-Position: refs/heads/master@{#844662}

tools/mb/mb_config.pyl

@@ -522,6 +522,7 @@
       'Linux Builder (dbg)': 'gpu_tests_debug_bot',
       'Linux Builder (dbg)(32)': 'gpu_tests_debug_bot_x86',
       'Linux Builder': 'gpu_tests_release_bot',
+      'Linux Builder (reclient)': 'gpu_tests_release_bot_reclient',
       'Network Service Linux': 'release_bot',
       'fuchsia-arm64-cast': 'release_bot_fuchsia_arm64_cast',
       'fuchsia-x64-cast': 'release_bot_fuchsia_cast',
@@ -2091,6 +2092,10 @@
       'gpu_tests', 'release_bot', 'minimal_symbols', 'disable_nacl',
     ],
 
+    'gpu_tests_release_bot_reclient': [
+      'gpu_tests', 'release_bot_reclient',
+    ],
+
     'gpu_tests_release_bot_x86_minimal_symbols': [
       'gpu_tests', 'release_bot', 'x86', 'minimal_symbols',
     ],
@@ -3209,6 +3214,10 @@
       'gn_args': 'proprietary_codecs=true',
     },
 
+    'reclient': {
+      'gn_args': 'use_rbe=true',
+    },
+
     'release': {
       'gn_args': 'is_debug=false',
     },
@@ -3223,6 +3232,10 @@
       'mixins': ['release', 'static', 'goma', 'chrome_with_codecs'],
     },
 
+    'release_bot_reclient': {
+      'mixins': ['release', 'static', 'reclient'],
+    },
+
     'release_java': {
       'gn_args': 'is_java_debug=false',
     },

tools/mb/mb_config_expectations/chromium.linux.json

@@ -102,6 +102,15 @@
       "use_goma": true
     }
   },
+  "Linux Builder (reclient)": {
+    "gn_args": {
+      "ffmpeg_branding": "Chrome",
+      "is_component_build": false,
+      "is_debug": false,
+      "proprietary_codecs": true,
+      "use_rbe": true
+    }
+  },
   "Network Service Linux": {
     "gn_args": {
       "is_component_build": false,