Recipes: make cwd default to slave_build

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
index 21e5d08769760b4bca24b98de7d246227bba532c..d517996c42a7bbf94774bfe02b5fe17c17c5b1a5 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
@@ -27,6 +27,7 @@
       "--revision",
       "src@12345"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -53,6 +54,7 @@
       "RECIPE_MODULE[webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -61,6 +63,7 @@
       "-u",
       "[BUILD]/scripts/slave/cleanup_temp.py"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -70,6 +73,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_DEFINES": "build_for_tool=memcheck component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
     },
@@ -93,6 +97,7 @@
       "--",
       "All"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   },
   {
@@ -121,6 +126,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "audio_decoder_unittests"
   },
   {
@@ -149,6 +155,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "common_audio_unittests"
   },
   {
@@ -177,6 +184,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "common_video_unittests"
   },
   {
@@ -205,6 +213,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "libjingle_media_unittest"
   },
   {
@@ -233,6 +242,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "libjingle_p2p_unittest"
   },
   {
@@ -261,6 +271,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "libjingle_peerconnection_unittest"
   },
   {
@@ -289,6 +300,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "modules_tests"
   },
   {
@@ -317,6 +329,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "modules_unittests"
   },
   {
@@ -345,6 +358,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_unittests"
   },
   {
@@ -373,6 +387,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "system_wrappers_unittests"
   },
   {
@@ -401,6 +416,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "test_support_unittests"
   },
   {
@@ -429,6 +445,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "tools_unittests"
   },
   {
@@ -457,6 +474,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "video_engine_core_unittests"
   },
   {
@@ -485,6 +503,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "video_engine_tests"
   },
   {
@@ -513,6 +532,7 @@
       "--tool",
       "memcheck"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "voice_engine_unittests"
   }
 ]