Recipes: make cwd default to slave_build

scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.json

Index: scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.json b/scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.json
index 85b1a95f117c8609447b4823b4b4bb4853e13b31..b36bcbf4b8c079e29adb609fc50061af3b13579c 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_linux_Android_Arm64_Builder__dbg_.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": "OS=android component=static_library fastbuild=1 gomadir='[BUILD]/goma' target_arch=arm64 use_goma=1",
@@ -82,6 +84,7 @@
       "[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@@@",
@@ -104,6 +107,7 @@
       "--properties",
       "{\"buildername\": \"Android Arm64 Builder (dbg)\", \"buildnumber\": 571, \"mastername\": \"chromium.linux\", \"slavename\": \"TestSlavename\", \"target_platform\": \"android\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -116,6 +120,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -128,6 +133,7 @@
       "[SLAVE_BUILD]/src/out/build_product.zip",
       "[SLAVE_BUILD]/src"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean local files",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -152,6 +158,7 @@
       "[SLAVE_BUILD]/src",
       "src"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "tree truth steps"
   },
   {
@@ -171,6 +178,7 @@
       "[BUILD]/goma",
       "--"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },