Recipes: make cwd default to slave_build

scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json

Index: scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json
diff --git a/scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json b/scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json
index e1ce90f3bd7ee006d0443746c002a8af8f1bddf3..0456c9f3500613315af82378bb9270d2cdfbccb0 100644
--- a/scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json
+++ b/scripts/slave/recipes/webrtc/chromium.expected/chromium_webrtc_fyi_Linux.json
@@ -25,6 +25,7 @@
       "--revision",
       "src/third_party/webrtc@HEAD"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -79,6 +80,7 @@
       "RECIPE_MODULE[webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -87,6 +89,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -96,6 +99,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "blink_logging_always_on=1 component=static_library dcheck_always_on=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
     },
@@ -119,6 +123,7 @@
       "--",
       "chromium_builder_webrtc"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   },
   {
@@ -152,6 +157,7 @@
       "--platform",
       "linux"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "sizes"
   },
   {
@@ -184,6 +190,7 @@
       "--test-launcher-print-test-stdio=always",
       "--test-launcher-bot-mode"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "content_browsertests"
   },
   {
@@ -218,6 +225,7 @@
       "--test-launcher-bot-mode",
       "--test-launcher-print-test-stdio=always"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "browser_tests"
   },
   {
@@ -253,6 +261,7 @@
       "--fake-variations-channel=canary",
       "--force-fieldtrials=WebRTC-NewVideoAPI/Disabled/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "content_browsertests_old_vie"
   },
   {
@@ -290,6 +299,7 @@
       "--fake-variations-channel=canary",
       "--force-fieldtrials=WebRTC-NewVideoAPI/Disabled/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "browser_tests_old_vie"
   },
   {
@@ -315,6 +325,7 @@
       "--build-number=571",
       "content_unittests"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "content_unittests"
   }
 ]