Recipes: make cwd default to slave_build

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

Index: scripts/slave/recipes/chromium.expected/full_chromium_fyi_Linux_ARM.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_fyi_Linux_ARM.json b/scripts/slave/recipes/chromium.expected/full_chromium_fyi_Linux_ARM.json
index 8088c6e5a796e4b1b9be3d508203c830148acf91..47da3b8190da88973f1fc1c6e35d89829426b126 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_fyi_Linux_ARM.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_fyi_Linux_ARM.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 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CROSSCOMPILE": "1",
       "GYP_DEFINES": "arm_float_abi=hard component=static_library gomadir='[BUILD]/goma' target_arch=arm test_isolation_mode=prepare use_goma=1"
@@ -81,6 +83,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.fyi.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.fyi.json@@@",
@@ -103,6 +106,7 @@
       "--properties",
       "{\"buildername\": \"Linux ARM\", \"buildnumber\": 571, \"mastername\": \"chromium.fyi\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -115,6 +119,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -136,6 +141,7 @@
       "All",
       "chromium_builder_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   },
   {
@@ -155,6 +161,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"Linux ARM\", \"buildnumber\": 571, \"mastername\": \"chromium.fyi\", \"parent_buildername\": null, \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "package build"
   }
 ]