Recipes: make cwd default to slave_build

scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json

Index: scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json
diff --git a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json
index a21503a679309cddfcce3e4561d918da9e1f8613..aa17ca844637b3170a7b849a972c592361bd5113 100644
--- a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json
+++ b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_linux_linux_chromium_practice_rel_ng.json
@@ -27,6 +27,7 @@
       "--revision",
       "src@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -73,6 +74,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
     },
@@ -86,6 +88,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.fyi.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.fyi.json@@@",
@@ -108,6 +111,7 @@
       "--properties",
       "{\"buildername\": \"linux_chromium_practice_rel_ng\", \"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@{}@@@",
@@ -137,6 +141,7 @@
       "[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'@@@",
@@ -159,6 +164,7 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@excluded_files@foo.cc (regex = 'f.*')@@@",
@@ -192,6 +198,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -214,6 +221,7 @@
       "chromium_swarm_tests",
       "blink_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile (with patch)"
   },
   {
@@ -248,6 +256,7 @@
       "--builder-name",
       "linux_chromium_practice_rel_ng"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "webkit_tests (with patch)",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>Total executed: 9001<br/>@@@"
@@ -273,6 +282,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_practice_rel_ng\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium.linux\", \"patch_project\": \"chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"slavename\": \"TestSlavename\", \"swarm_hashes\": {\"angle_unittests\": \"[dummy hash for angle_unittests]\", \"content_gl_tests\": \"[dummy hash for content_gl_tests]\", \"content_unittests\": \"[dummy hash for content_unittests]\", \"gl_tests\": \"[dummy hash for gl_tests]\", \"gles2_conform_test\": \"[dummy hash for gles2_conform_test]\", \"gpu_unittests\": \"[dummy hash for gpu_unittests]\", \"media_unittests\": \"[dummy hash for media_unittests]\", \"tab_capture_end2end_tests\": \"[dummy hash for tab_capture_end2end_tests]\", \"telemetry_gpu_test\": \"[dummy hash for telemetry_gpu_test]\"}, \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "archive_webkit_tests_results",
     "~followup_annotations": [
       "@@@STEP_LINK@layout_test_results@https://storage.googleapis.com/chromium-layout-test-archives/linux_chromium_practice_rel_ng/571/layout-test-results/results.html@@@",