chromium_tests: apply chromium.get_env() when running tests

scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json

Index: scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json b/scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json
index 921736298aea9828973e9dd6f67eff2e728e17cc..e9600692eb2f95217a9c1c776b1b1a0331c4cea2 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_mac_Mac10_9_Tests__dbg_.json
@@ -294,6 +294,10 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "env": {
+      "FORCE_MAC_TOOLCHAIN": "1",
+      "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 +371,10 @@
       "--",
       "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
     ],
+    "env": {
+      "FORCE_MAC_TOOLCHAIN": "1",
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "[trigger] browser_tests on Mac-10.9",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -407,6 +415,10 @@
       "1",
       "browser_tests/Mac-10.9/ffffffffff/Mac10.9 Tests (dbg)/571"
     ],
+    "env": {
+      "FORCE_MAC_TOOLCHAIN": "1",
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "browser_tests on Mac-10.9",
     "~followup_annotations": [
       "@@@STEP_LINK@shard #0 isolated out@blah@@@"
@@ -432,6 +444,10 @@
       "--chrome-revision",
       "170242"
     ],
+    "env": {
+      "FORCE_MAC_TOOLCHAIN": "1",
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
     "name": "Upload to test-results [browser_tests on Mac-10.9]"
   },
   {