Recipes: make cwd default to slave_build

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

Index: scripts/slave/recipes/chromium.expected/dynamic_gtest_win.json
diff --git a/scripts/slave/recipes/chromium.expected/dynamic_gtest_win.json b/scripts/slave/recipes/chromium.expected/dynamic_gtest_win.json
index e2d5115ddfb88bbfca9e58805a45cf333103acc6..9abcd828c104a4e7bbc1d06b002cf33e0433d447 100644
--- a/scripts/slave/recipes/chromium.expected/dynamic_gtest_win.json
+++ b/scripts/slave/recipes/chromium.expected/dynamic_gtest_win.json
@@ -5,6 +5,7 @@
       "-u",
       "[BUILD]\\scripts\\slave\\kill_processes.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "taskkill"
   },
   {
@@ -29,6 +30,7 @@
       "--revision",
       "src@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -75,6 +77,7 @@
       "[SLAVE_BUILD]\\src\\tools\\swarming_client\\swarming.py",
       "--version"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "swarming.py --version",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -88,6 +91,7 @@
       "[DEPOT_TOOLS]\\gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "chromium_win_pch=0 component=static_library fastbuild=1 gomadir='[BUILD]\\goma' target_arch=ia32 test_isolation_mode=prepare use_goma=1"
     },
@@ -101,6 +105,7 @@
       "[SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.win.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.win.json@@@",
@@ -134,6 +139,7 @@
       "--properties",
       "{\"buildername\": \"Win7 Tests (1)\", \"buildnumber\": 571, \"mastername\": \"chromium.win\", \"slavename\": \"TestSlavename\", \"target_platform\": \"win\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -146,6 +152,7 @@
       "-u",
       "[BUILD]\\scripts\\slave\\cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -155,6 +162,7 @@
       "\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@@@@",
@@ -182,6 +190,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"Win7 Tests (1)\", \"buildnumber\": 571, \"mastername\": \"chromium.win\", \"parent_buildername\": \"Win Builder\", \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "extract build"
   },
   {
@@ -192,6 +201,7 @@
       "--target",
       "Release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "start_crash_service"
   },
   {
@@ -218,6 +228,7 @@
       "--build-number=571",
       "aura_unittests.exe"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "aura_unittests"
   },
   {
@@ -246,6 +257,7 @@
       "--test-launcher-shard-index=0",
       "--test-launcher-total-shards=2"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "browser_tests"
   },
   {
@@ -263,6 +275,7 @@
       "--write-full-results-to",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "test_installer"
   },
   {
@@ -273,6 +286,7 @@
       "--target",
       "Release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "process_dumps"
   }
 ]