Recipes: make cwd default to slave_build

scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json

Index: scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
diff --git a/scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json b/scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
index 8265d5c7665ce07d9fa3c2778455f6e756f7bcd8..a6c3c733128eaddf3c1a97d17bd89a01b2ddef36 100644
--- a/scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
+++ b/scripts/slave/recipes/skia/skia.expected/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN.json
@@ -36,6 +36,7 @@
       "--spec",
       "cache_dir = None\nsolutions = [{'deps_file': 'DEPS', 'managed': True, 'name': 'skia', 'url': 'https://skia.googlesource.com/skia.git'}]"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient setup"
   },
   {
@@ -53,6 +54,7 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient sync",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -87,6 +89,7 @@
       "[SLAVE_BUILD]/tmp",
       "511"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "makedirs tmp_dir",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -109,6 +112,7 @@
       "[SLAVE_BUILD]/skia/SKP_VERSION",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Get expected SKP_VERSION"
   },
   {
@@ -119,6 +123,7 @@
       "[SLAVE_BUILD]/tmp/SKP_VERSION",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Get downloaded SKP_VERSION"
   },
   {
@@ -134,6 +139,7 @@
       "cat",
       "gs://chromium-skia-gm/skimage/input/TIMESTAMP_LAST_UPLOAD_COMPLETED"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gsutil cat TIMESTAMP_LAST_UPLOAD_COMPLETED",
     "stdout": "/path/to/tmp/"
   },
@@ -145,6 +151,7 @@
       "[SLAVE_BUILD]/tmp/SKIMAGE_VERSION",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Get downloaded SKIMAGE_VERSION"
   },
   {
@@ -154,6 +161,7 @@
       "\nimport os, sys\nfrom common import chromium_utils\n\nif os.path.exists(sys.argv[1]):\n  chromium_utils.RemoveDirectory(sys.argv[1])\n",
       "[SLAVE_BUILD]/dm"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rmtree dm",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -173,6 +181,7 @@
       "[SLAVE_BUILD]/dm",
       "511"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "makedirs dm",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -286,6 +295,7 @@
       "--nogpu",
       "--dummy-flags"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "ASAN_OPTIONS": "symbolize=1 detect_leaks=1",
       "LSAN_OPTIONS": "symbolize=1 print_suppressions=1 suppressions=[SLAVE_BUILD]/skia/tools/lsan.supp",