Recipes: make cwd default to slave_build

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

Index: scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_chromeos_msan_rel_ng.json
diff --git a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_chromeos_msan_rel_ng.json b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_chromeos_msan_rel_ng.json
index 1abfb2bfc4a916ed913c763a98f01df0d7fc7636..74a1fc173df631e21c251345666d234d0ee3d16d 100644
--- a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_chromeos_msan_rel_ng.json
+++ b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_chromeos_msan_rel_ng.json
@@ -27,6 +27,7 @@
       "--revision",
       "src@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -73,6 +74,7 @@
       "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
       "--version"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "swarming.py --version",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -86,6 +88,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "chromeos=1 clang=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' msan=1 msan_track_origins=2 target_arch=x64 test_isolation_mode=prepare use_goma=1 use_prebuilt_instrumented_libraries=1"
     },
@@ -99,6 +102,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.memory.fyi.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.memory.fyi.json@@@",
@@ -121,6 +125,7 @@
       "--properties",
       "{\"buildername\": \"linux_chromium_chromeos_msan_rel_ng\", \"buildnumber\": 571, \"mastername\": \"tryserver.chromium.linux\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -150,6 +155,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/trybot_analyze_config.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read filter exclusion spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: 'testing/buildbot/trybot_analyze_config.json'@@@",
@@ -172,6 +178,7 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@excluded_files@foo.cc (regex = 'f.*')@@@",
@@ -192,6 +199,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -214,6 +222,7 @@
       "All",
       "chromium_builder_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile (with patch)"
   }
 ]