chromium_tests: apply chromium.get_env() when running tests

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

Index: scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Linux_Debug__NVIDIA_.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Linux_Debug__NVIDIA_.json b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Linux_Debug__NVIDIA_.json
index e3da4bab5265037787330d9eac3d28e54e9c5557..49ea6e0ee166d0fcf2d0c1f462947b13a421d1b2 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Linux_Debug__NVIDIA_.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Linux_Debug__NVIDIA_.json
@@ -294,6 +294,9 @@
       "--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@{@@@",
@@ -367,6 +370,9 @@
       "--",
       "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "[trigger] browser_tests on Ubuntu-12.04",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -407,6 +413,9 @@
       "1",
       "browser_tests/Ubuntu-12.04/ffffffffff/Linux Debug (NVIDIA)/571"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "browser_tests on Ubuntu-12.04",
     "~followup_annotations": [
       "@@@STEP_LINK@shard #0 isolated out@blah@@@"
@@ -432,6 +441,9 @@
       "--chrome-revision",
       "170242"
     ],
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "Upload to test-results [browser_tests on Ubuntu-12.04]"
   },
   {