chromium_tests: apply chromium.get_env() when running tests

scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json

Index: scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json
diff --git a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json
index 1fc813fb9bad2f2779e978cd93728349118c321b..34148fd17fc8ce137105bfd6a6f51f204cc2ad4e 100644
--- a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json
+++ b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_linux_blink_dbg_fail.json
@@ -417,6 +417,9 @@
       "--step-name",
       "webkit_tests (with patch)"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "webkit_tests (with patch)",
     "~followup_annotations": [
       "step returned non-zero exit code: 5",
@@ -440,6 +443,9 @@
       "--gs-bucket",
       "gs://chromium-layout-test-archives"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "archive_webkit_tests_results",
     "~followup_annotations": [
       "@@@STEP_LINK@layout_test_results@https://storage.googleapis.com/chromium-layout-test-archives/linux_blink_dbg/571/layout-test-results/results.html@@@",
@@ -477,6 +483,7 @@
       "--output_manifest"
     ],
     "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "bot_update (without patch)",
@@ -660,6 +667,9 @@
       "--skipped",
       "always"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "webkit_tests (without patch)",
     "~followup_annotations": [
       "step returned non-zero exit code: 5",
@@ -673,6 +683,9 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "webkit_tests (retry summary)",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>ignored:<br/>bad/totally-bad-probably.html<br/>tricky/totally-maybe-not-awesome.html<br/>@@@",