chromium_tests: apply chromium.get_env() when running tests

scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json

Index: scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json b/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json
index 74529e8f75eb85be080548839c1c5a84720f851f..58fb6e5efda55a67b88a48582e6bb7d3dc086de2 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Mac10_11__retina_.json
@@ -397,6 +397,9 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "find isolated tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -414,6 +417,9 @@
       "\nimport sys\nprint '*.isolated file for target %s is missing' % sys.argv[1]\nsys.exit(1)\n",
       "browser_tests"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "[error] browser_tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -457,6 +463,9 @@
       "--step-name",
       "webkit_tests"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "webkit_tests",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>Total executed: 9001<br/>@@@"
@@ -480,6 +489,9 @@
       "--gs-acl",
       "public-read"
     ],
+    "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/WebKit_Mac10_11__retina_/571/layout-test-results/results.html@@@",
@@ -493,6 +505,9 @@
       "\nimport sys\nprint '%s wasn\\'t triggered' % sys.argv[1]\nsys.exit(1)\n",
       "browser_tests"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "[collect error] browser_tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",