Recipes: make cwd default to slave_build

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

Index: scripts/slave/recipes/chromium.expected/archive_dependencies_failure.json
diff --git a/scripts/slave/recipes/chromium.expected/archive_dependencies_failure.json b/scripts/slave/recipes/chromium.expected/archive_dependencies_failure.json
index 481b470d176427d1a01d9cafd0219c500da1204c..b9e9581d54546a3a95211cc0dc2768ec24b7eccb 100644
--- a/scripts/slave/recipes/chromium.expected/archive_dependencies_failure.json
+++ b/scripts/slave/recipes/chromium.expected/archive_dependencies_failure.json
@@ -21,6 +21,7 @@
       "--revision",
       "src@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -67,6 +68,7 @@
       "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
       "--version"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "swarming.py --version",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -80,6 +82,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "component=static_library gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
@@ -93,6 +96,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.linux.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.linux.json@@@",
@@ -115,6 +119,7 @@
       "--properties",
       "{\"buildername\": \"Linux Builder\", \"buildnumber\": 0, \"mastername\": \"chromium.linux\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -127,6 +132,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -147,6 +153,7 @@
       "--",
       "chromium_swarm_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   },
   {
@@ -165,6 +172,7 @@
       "--build",
       "0"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "archive dependencies",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
@@ -188,6 +196,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"Linux Builder\", \"buildnumber\": 0, \"mastername\": \"chromium.linux\", \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "package build"
   }
 ]