Recipes: make cwd default to slave_build

scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json

Index: scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json
diff --git a/scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json b/scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json
index c65bb0cf751752d0a4a38abd94692e8eaa1c71fe..3ece0431973120fbc87a20cc95985c53188d1db8 100644
--- a/scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json
+++ b/scripts/slave/recipes/blink_android_trybot.expected/unittest_checkout_fails.json
@@ -29,6 +29,7 @@
       "--revision",
       "src/third_party/WebKit@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -47,6 +48,7 @@
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}]\ntarget_os = ['android']"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient setup"
   },
   {
@@ -57,6 +59,7 @@
       ".",
       "[DEPOT_TOOLS]/gclient"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient revert",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
@@ -80,6 +83,7 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient sync",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -120,6 +124,7 @@
       "\nimport os, sys\nfrom common import chromium_utils\n\nfor p in [os.path.join(sys.argv[1], x) for x in os.listdir(sys.argv[1])]:\n  if os.path.isdir(p):\n    chromium_utils.RemoveDirectory(p)\n  else:\n    os.unlink(p)\n",
       "[SLAVE_BUILD]"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rmcontents slave build directory",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -143,6 +148,7 @@
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}]\ntarget_os = ['android']"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient setup (2)"
   },
   {
@@ -162,6 +168,7 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient sync (2)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -210,6 +217,7 @@
       "https://codereview.chromium.org",
       "--no-auth"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "apply_issue",
     "~followup_annotations": [
       "@@@STEP_LINK@Applied issue 12853011@https://codereview.chromium.org/12853011@@@"
@@ -222,6 +230,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CHROMIUM_NO_ACTION": "1",
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
@@ -245,6 +254,7 @@
       "[BUILD]/goma",
       "//out/Release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Generate build files"
   },
   {
@@ -265,6 +275,7 @@
       "--",
       "blink_tests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },