Recipes: make cwd default to slave_build

scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json

Index: scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json
diff --git a/scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json b/scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json
index 4d7b5890177590e0b87bdefe124ae81993b14e61..8b04c41613910c2fad3bd5ad9645b2f505bb3847 100644
--- a/scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json
+++ b/scripts/slave/recipes/android_webview_aosp_perf.expected/basic.json
@@ -22,6 +22,7 @@
       "src@204787",
       "--force"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_TEXT@Some step text@@@",
@@ -71,6 +72,7 @@
       "[SLAVE_BUILD]/src/out/build_product.zip",
       "[SLAVE_BUILD]/src"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "clean local files",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -95,6 +97,7 @@
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CROSSCOMPILE": "1",
       "GYP_DEFINES": "OS=android android_webview_telemetry_build=1 component=static_library fastbuild=1 gomadir='[BUILD]/goma' target_arch=arm use_goma=1",
@@ -122,6 +125,7 @@
       "android_webview_telemetry_shell_apk",
       "android_tools"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -134,6 +138,7 @@
       "[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"
     },
@@ -145,6 +150,7 @@
       "--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"
     },
@@ -191,6 +197,7 @@
       "--disable-network",
       "--disable-java-debug"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -205,6 +212,7 @@
       "com.android.webview",
       "--release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -219,6 +227,7 @@
       "org.chromium.telemetry_shell",
       "--release"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -232,6 +241,7 @@
       "['[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb', 'devices']",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "List adb devices",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@[@@@",
@@ -255,6 +265,7 @@
       "--device",
       "014E1F310401C009"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "List Perf Tests",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -310,6 +321,7 @@
       "--output-json-list",
       "/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"
     },
@@ -356,6 +368,7 @@
       "page_cycler.foo",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -392,6 +405,7 @@
       "perf_test.foo",
       "--verbose"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -410,6 +424,7 @@
       "[SLAVE_BUILD]/src/build/android/adb_logcat_printer.py",
       "[SLAVE_BUILD]/src/out/logcat"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "logcat_dump"
   },
   {
@@ -420,6 +435,7 @@
       "--more-info",
       "[SLAVE_BUILD]/src/out/Release/full_log"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -432,6 +448,7 @@
       "-s",
       "-w"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
@@ -444,6 +461,7 @@
       "\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/Release/test_logs/*.log"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "test_report",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",