Recipes: make cwd default to slave_build

scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json

Index: scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json
diff --git a/scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json b/scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json
index 7e50749f22097b63cea454613c4c5c15c3b7d51b..9ed233369544a07e7e6356f3c9e5251ac255c8dd 100644
--- a/scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json
+++ b/scripts/slave/recipes/chromium_trybot_legacy.expected/swarming_basic_try_job.json
@@ -28,6 +28,7 @@
       "src@HEAD",
       "--force"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -75,6 +76,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium_memory_trybot.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: testing/buildbot/chromium_memory_trybot.json@@@",
@@ -116,6 +118,7 @@
       "--properties",
       "{\"buildername\": \"linux_chromium_asan_rel\", \"buildnumber\": 571, \"mastername\": \"tryserver.chromium.linux\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -145,6 +148,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/trybot_analyze_config.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read filter exclusion spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: 'testing/buildbot/trybot_analyze_config.json'@@@",
@@ -167,6 +171,7 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@excluded_files@foo.cc (regex = 'f.*')@@@",
@@ -197,6 +202,7 @@
       "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
       "--version"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "swarming.py --version",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -210,6 +216,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "asan=1 clang=1 component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' lsan=1 target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
@@ -224,6 +231,7 @@
       "[SLAVE_BUILD]/src/out/Release",
       "--clean-isolated-files"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean isolated files"
   },
   {
@@ -247,6 +255,7 @@
       "browser_tests",
       "browser_tests_run"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile (with patch)"
   },
   {
@@ -270,6 +279,7 @@
       "/path/to/tmp/",
       "[SLAVE_BUILD]/src/out/Release/*.isolated.gen.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "find isolated targets"
   },
   {
@@ -286,6 +296,7 @@
       "[SLAVE_BUILD]/src/out/Release/dummy_target_1.isolated.gen.json",
       "[SLAVE_BUILD]/src/out/Release/dummy_target_2.isolated.gen.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "isolate tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -368,6 +379,7 @@
       "--lsan=1",
       "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "[trigger] base_unittests (with patch)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -456,6 +468,7 @@
       "--lsan=1",
       "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "[trigger] browser_tests (with patch)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -511,6 +524,7 @@
       "--output",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "nacl_integration (with patch)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -542,6 +556,7 @@
       "1",
       "base_unittests (with patch)/Ubuntu-12.04/[dummy has/linux_chromium_asan_rel/571"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "base_unittests (with patch)"
   },
   {
@@ -566,6 +581,7 @@
       "5",
       "browser_tests (with patch)/Ubuntu-12.04/[dummy has/linux_chromium_asan_rel/571"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "browser_tests (with patch)"
   }
 ]