Recipes: make cwd default to slave_build

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.json

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.json
index 11bbbf9ef131f79b31cc41cd27d45af30ffcd852..ab048c0f142fd92b0460984753d4f2a8861be25b 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_android_s3.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"
   },
   {
@@ -65,6 +67,7 @@
       "[SLAVE_BUILD]/src/out/build_product.zip",
       "[SLAVE_BUILD]/src"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean local files",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -89,6 +92,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CROSSCOMPILE": "1",
       "GYP_DEFINES": "OS=android component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=arm use_goma=1",
@@ -113,6 +117,7 @@
       "[BUILD]/goma",
       "--"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -125,6 +130,7 @@
       "[SLAVE_BUILD]/src/build/android/adb_logcat_monitor.py",
       "[SLAVE_BUILD]/src/out/logcat"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -138,6 +144,7 @@
       "--adb-path",
       "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -149,6 +156,7 @@
       "--json-output",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -189,6 +197,7 @@
       "-t",
       "Debug"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -204,6 +213,7 @@
       "audio_decoder_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -219,6 +229,7 @@
       "common_audio_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -234,6 +245,7 @@
       "common_video_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -249,6 +261,7 @@
       "modules_tests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -264,6 +277,7 @@
       "modules_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -279,6 +293,7 @@
       "system_wrappers_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -294,6 +309,7 @@
       "test_support_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -309,6 +325,7 @@
       "tools_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -324,6 +341,7 @@
       "video_engine_core_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -339,6 +357,7 @@
       "video_engine_tests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -354,6 +373,7 @@
       "voice_engine_unittests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -369,6 +389,7 @@
       "webrtc_perf_tests",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -379,6 +400,7 @@
       "[SLAVE_BUILD]/src/build/android/adb_install_apk.py",
       "[SLAVE_BUILD]/src/out/Debug/apks/AppRTCDemo.apk"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "CHECKOUT_SOURCE_ROOT": "[SLAVE_BUILD]/src"
     },
@@ -394,6 +416,7 @@
       "AppRTCDemoTest",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Instrumentation test AppRTCDemoTest"
   },
   {
@@ -406,6 +429,7 @@
       "libjingle_peerconnection_android_unittest",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Instrumentation test libjingle_peerconnection_android_unittest"
   },
   {
@@ -418,6 +442,7 @@
       "[SLAVE_BUILD]/src/build/android/adb_logcat_printer.py",
       "[SLAVE_BUILD]/src/out/logcat"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "logcat_dump"
   },
   {
@@ -427,6 +452,7 @@
       "\nimport glob, os, sys\nfor report in glob.glob(sys.argv[1]):\n  with open(report, 'r') as f:\n    for l in f.readlines():\n      print l\n  os.remove(report)\n",
       "[SLAVE_BUILD]/src/out/Debug/test_logs/*.log"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "test_report",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",