Recipes: make cwd default to slave_build

scripts/slave/recipes/skia/skia.expected/Perf-Android-GCC-Nexus9-CPU-Denver-Arm64-Release.json

 [
   {
     "cmd": [
       "git",
       "fetch"
     ],
     "cwd": "[SLAVE_BUILD]/skia",
     "name": "git fetch"
   },
   {
@@ skipping 18 matching lines @@
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "config",
       "--spec",
       "cache_dir = None\nsolutions = [{'deps_file': 'DEPS', 'managed': True, 'name': 'skia', 'url': 'https://skia.googlesource.com/skia.git'}]\ntarget_os = ['android']"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient setup"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "sync",
       "--nohooks",
       "--force",
       "--verbose",
       "--delete_unversioned_trees",
       "--revision",
       "skia@abc123",
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient sync",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"solutions\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"skia/\": {@@@",
       "@@@STEP_LOG_LINE@json.output@      \"revision\": 164710@@@",
       "@@@STEP_LOG_LINE@json.output@    }@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@",
       "@@@SET_BUILD_PROPERTY@got_revision@164710@@@"
     ]
   },
   {
     "cmd": [
       "which",
       "ccache"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "has ccache?",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
       "@@@STEP_FAILURE@@@"
     ]
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/android/bin/android_ninja",
@@ skipping 10 matching lines @@
     },
     "name": "build nanobench"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "wait-for-device"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "wait for device (1)"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "echo",
       "$EXTERNAL_STORAGE"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "get EXTERNAL_STORAGE dir",
     "stdout": "/path/to/tmp/"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "root"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "adb root"
   },
   {
     "cmd": [
       "sleep",
       "10"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "wait"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "wait-for-device"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "wait for device (2)"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/android/bin/android_kill_skia",
       "-s",
       "HT4ADJT03339"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "ANDROID_SDK_ROOT": "/home/chrome-bot/android-sdk-linux",
       "SKIA_ANDROID_VERBOSE_SETUP": "1"
     },
     "name": "kill skia"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "stop"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "stop shell"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/android/bin/adb_push_if_needed",
       "-s",
       "HT4ADJT03339",
       "[SLAVE_BUILD]/skia/resources",
       "/storage/emulated/legacy/skiabot/skia_resources"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "ANDROID_SDK_ROOT": "/home/chrome-bot/android-sdk-linux",
       "SKIA_ANDROID_VERBOSE_SETUP": "1"
     },
     "name": "push resources"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[SLAVE_BUILD]/tmp",
       "511"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "makedirs tmp_dir",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys, os@@@",
       "@@@STEP_LOG_LINE@python.inline@path = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@mode = int(sys.argv[2])@@@",
       "@@@STEP_LOG_LINE@python.inline@if not os.path.isdir(path):@@@",
       "@@@STEP_LOG_LINE@python.inline@  if os.path.exists(path):@@@",
       "@@@STEP_LOG_LINE@python.inline@    print \"%s exists but is not a dir\" % path@@@",
       "@@@STEP_LOG_LINE@python.inline@    sys.exit(1)@@@",
       "@@@STEP_LOG_LINE@python.inline@  os.makedirs(path, mode)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
       "[SLAVE_BUILD]/skia/SKP_VERSION",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Get expected SKP_VERSION"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
       "[SLAVE_BUILD]/tmp/SKP_VERSION",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Get downloaded SKP_VERSION"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "cat",
       "/storage/emulated/legacy/skiabot/skia_tmp_dir/SKP_VERSION"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read SKP_VERSION",
     "stdout": "/path/to/tmp/"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "rm",
       "-r",
       "/storage/emulated/legacy/skiabot/skia_perf"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rmdir skia_perf"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "if",
       "[",
       "-e",
       "/storage/emulated/legacy/skiabot/skia_perf",
       "];",
       "then",
       "echo",
       "FILE_EXISTS;",
       "fi"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "exists skia_perf",
     "stdout": "/path/to/tmp/"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "shell",
       "mkdir",
       "-p",
       "/storage/emulated/legacy/skiabot/skia_perf"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "mkdir skia_perf"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/skia/tools/nanobench_flags.py",
       "/path/to/tmp/json",
       "Perf-Android-GCC-Nexus9-CPU-Denver-Arm64-Release"
     ],
@@ skipping 49 matching lines @@
       "GCC",
       "cpu_or_gpu",
       "CPU",
       "cpu_or_gpu_value",
       "Denver",
       "model",
       "Nexus9",
       "os",
       "Android"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "ANDROID_SDK_ROOT": "/home/chrome-bot/android-sdk-linux",
       "SKIA_ANDROID_VERBOSE_SETUP": "1"
     },
     "name": "nanobench"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/android/bin/adb_pull_if_needed",
       "-s",
       "HT4ADJT03339",
       "/storage/emulated/legacy/skiabot/skia_perf",
       "[SLAVE_BUILD]/perfdata/Perf-Android-GCC-Nexus9-CPU-Denver-Arm64-Release/data"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "ANDROID_SDK_ROOT": "/home/chrome-bot/android-sdk-linux",
       "SKIA_ANDROID_VERBOSE_SETUP": "1"
     },
     "name": "pull skia_perf"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[skia]/resources/upload_bench_results.py",
       "Perf-Android-GCC-Nexus9-CPU-Denver-Arm64-Release",
       "5",
       "[SLAVE_BUILD]/perfdata/Perf-Android-GCC-Nexus9-CPU-Denver-Arm64-Release/data",
       "164710",
       "[DEPOT_TOOLS]/third_party/gsutil/gsutil"
     ],
     "cwd": "[SLAVE_BUILD]/skia",
     "name": "Upload Nanobench Results"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "reboot"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "reboot"
   },
   {
     "cmd": [
       "sleep",
       "10"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "wait for reboot"
   },
   {
     "cmd": [
       "/home/chrome-bot/android-sdk-linux/platform-tools/adb",
       "-s",
       "HT4ADJT03339",
       "wait-for-device"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "wait for device (3)"
   }
 ]