Recipes: make cwd default to slave_build

scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.json

Index: scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.json
diff --git a/scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.json b/scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.json
index c58fc5424e31502dafc0b1775cca12d6e3d4360d..baadb31a112bdd88c1cf86762a751387901bbb50 100644
--- a/scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.json
+++ b/scripts/slave/recipes/chromium.expected/dynamic_gtest_memory_mac64.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": "asan=1 clang=1 component=static_library fastbuild=0 gomadir='[BUILD]/goma' host_arch=x64 target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
@@ -93,6 +96,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.memory.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.memory.json@@@",
@@ -121,6 +125,7 @@
       "--properties",
       "{\"buildername\": \"Mac ASan 64 Tests (1)\", \"buildnumber\": 571, \"mastername\": \"chromium.memory\", \"slavename\": \"TestSlavename\", \"target_platform\": \"mac\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -133,6 +138,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -142,6 +148,7 @@
       "\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]/src/out/Release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rmtree build directory",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -169,6 +176,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"Mac ASan 64 Tests (1)\", \"buildnumber\": 571, \"mastername\": \"chromium.memory\", \"parent_buildername\": \"Mac ASan 64 Builder\", \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "extract build"
   },
   {
@@ -197,6 +205,7 @@
       "browser_tests",
       "--test-launcher-print-test-stdio=always"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "browser_tests"
   }
 ]