chromium_tests: apply chromium.get_env() when running tests

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

Index: scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_win_blink_dbg_fail.json
diff --git a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_win_blink_dbg_fail.json b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_win_blink_dbg_fail.json
index 44f062ff9f684dfaf7ba7f16f56655556954f3bf..1dceba813b04d8966a65073c3531ad0397d96c32 100644
--- a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_win_blink_dbg_fail.json
+++ b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_blink_win_blink_dbg_fail.json
@@ -422,6 +422,9 @@
       "tryserver.blink",
       "--debug-rwt-logging"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json"
+    },
     "name": "webkit_tests (with patch)",
     "~followup_annotations": [
       "step returned non-zero exit code: 5",
@@ -445,6 +448,9 @@
       "--gs-bucket",
       "gs://chromium-layout-test-archives"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\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/win_blink_dbg/571/layout-test-results/results.html@@@",
@@ -457,6 +463,9 @@
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\kill_processes.py"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json"
+    },
     "name": "taskkill (2)"
   },
   {
@@ -490,6 +499,7 @@
       "--output_manifest"
     ],
     "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json",
       "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "bot_update (without patch)",
@@ -663,6 +673,9 @@
       "tryserver.blink",
       "--debug-rwt-logging"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json"
+    },
     "name": "webkit_tests (without patch)",
     "~followup_annotations": [
       "step returned non-zero exit code: 5",
@@ -676,6 +689,9 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\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/>@@@",
@@ -690,6 +706,9 @@
       "--target",
       "Debug"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json"
+    },
     "name": "process_dumps"
   },
   {