Recipes: make cwd default to slave_build

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

Index: scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Linux_ASAN.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Linux_ASAN.json b/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Linux_ASAN.json
index c3a8f2b91d995f7d8469ecab223aa864794d3484..39b1563c27ccf728a5de35e6fc75f76f5d4c1d52 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Linux_ASAN.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_webkit_WebKit_Linux_ASAN.json
@@ -23,6 +23,7 @@
       "--revision",
       "src/third_party/WebKit@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -69,6 +70,7 @@
       "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
       "--version"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "swarming.py --version",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ -82,6 +84,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "asan=1 clang=1 component=static_library gomadir='[BUILD]/goma' lsan=1 target_arch=x64 test_isolation_mode=prepare use_goma=1"
     },
@@ -95,6 +98,7 @@
       "[SLAVE_BUILD]/src/testing/buildbot/chromium.webkit.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: [SLAVE_BUILD]/src/testing/buildbot/chromium.webkit.json@@@",
@@ -128,6 +132,7 @@
       "--properties",
       "{\"buildername\": \"WebKit Linux ASAN\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -140,6 +145,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -151,6 +157,7 @@
       "[SLAVE_BUILD]/src/out/Release",
       "--clean-isolated-files"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean isolated files"
   },
   {
@@ -173,6 +180,7 @@
       "browser_tests",
       "browser_tests_run"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   },
   {
@@ -201,6 +209,7 @@
       "--verbose",
       "[SLAVE_BUILD]/src/out/Release/browser_tests.isolated.gen.json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "isolate tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -219,6 +228,7 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "find isolated tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -236,6 +246,7 @@
       "\nimport sys\nprint '*.isolated file for target %s is missing' % sys.argv[1]\nsys.exit(1)\n",
       "browser_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "[error] browser_tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -283,6 +294,7 @@
       "48000",
       "--options=--enable-sanitizer"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "webkit_tests",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br/>Total executed: 9001<br/>@@@"
@@ -308,6 +320,7 @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"buildername\": \"WebKit Linux ASAN\", \"buildnumber\": 571, \"mastername\": \"chromium.webkit\", \"parent_buildername\": null, \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"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/WebKit_Linux_ASAN/571/layout-test-results/results.html@@@",
@@ -321,6 +334,7 @@
       "\nimport sys\nprint '%s wasn\\'t triggered' % sys.argv[1]\nsys.exit(1)\n",
       "browser_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "[collect error] browser_tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",