WebRTC: Use goma from cipd

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json
index 65d8a3d135d1fa101db05fce15173fdf9f8e9cd9..dd2c2780f31d05cea400bf06eca947fb3a294b9f 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_x64_gn_dbg.json
@@ -110,6 +110,60 @@
     "name": "gn"
   },
   {
+    "cmd": [],
+    "name": "ensure_goma"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[build::cipd]\\resources\\bootstrap.py",
+      "--platform",
+      "windows-amd64",
+      "--dest-directory",
+      "[SLAVE_BUILD]\\cipd",
+      "--json-output",
+      "/path/to/tmp/json"
+    ],
+    "name": "ensure_goma.install cipd",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_TEXT@cipd instance_id: 40-chars-fake-of-the-package-instance_id@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"executable\": \"[SLAVE_BUILD]\\\\cipd\\\\cipd\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"instance_id\": \"40-chars-fake-of-the-package-instance_id\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[SLAVE_BUILD]\\cipd\\cipd",
+      "ensure",
+      "--root",
+      "[CACHE]\\cipd\\goma",
+      "--list",
+      "infra_internal/goma/client/windows-amd64 release",
+      "--json-output",
+      "/path/to/tmp/json",
+      "--service-account-json",
+      "C:\\creds\\service_accounts\\service-account-goma-client.json"
+    ],
+    "name": "ensure_goma.ensure_installed",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"result\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@    {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"instance_id\": \"resolved-instance_id-of-release---------\", @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"package\": \"infra_internal/goma/client/windows-amd64\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  ]@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
     "cmd": [
       "python",
       "-u",
@@ -136,7 +190,7 @@
       "--goma-service-account-json-file",
       "C:\\creds\\service_accounts\\service-account-goma-client.json",
       "--goma-dir",
-      "[BUILD]\\goma",
+      "[CACHE]\\cipd\\goma",
       "--goma-fail-fast",
       "--goma-disable-local-fallback",
       "--",