Recipes: make cwd default to slave_build

scripts/slave/recipes/android_webview_aosp.expected/manifest_changes_cause_clobber.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "chromium.testing.master",
       "--builder",
       "TestBuilder",
       "--slave",
       "TestSlavename",
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}]\ntarget_os = ['android']",
       "--root",
       "src",
       "--revision_mapping_file",
       "{}",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",
       "src@204787"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "bot_update",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"did_run\": false, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"patch_failure\": false@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "config",
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}]\ntarget_os = ['android']"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "gclient setup"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "sync",
       "--nohooks",
       "--force",
       "--verbose",
       "--delete_unversioned_trees",
       "--revision",
       "src@204787",
       "--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@    \"src/\": {@@@",
       "@@@STEP_LOG_LINE@json.output@      \"revision\": 170242@@@",
       "@@@STEP_LOG_LINE@json.output@    }, @@@",
       "@@@STEP_LOG_LINE@json.output@    \"src/native_client/\": {@@@",
       "@@@STEP_LOG_LINE@json.output@      \"revision\": 274981@@@",
       "@@@STEP_LOG_LINE@json.output@    }, @@@",
@@ skipping 20 matching lines @@
       "@@@SET_BUILD_PROPERTY@got_v8_revision@43426@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CHROMIUM_NO_ACTION": "1"
     },
     "name": "gclient runhooks"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/src/build/util/lastchange.py",
       "-o",
       "[SLAVE_BUILD]/src/build/util/LASTCHANGE",
       "-s",
       "[SLAVE_BUILD]/src"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Chromium LASTCHANGE"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/src/build/util/lastchange.py",
       "-o",
       "[SLAVE_BUILD]/src/build/util/LASTCHANGE.blink",
       "-s",
       "[SLAVE_BUILD]/src/third_party/WebKit"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "Blink LASTCHANGE"
   },
   {
     "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]/android-src",
       "511"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "makedirs android source root",
     "~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)@@@",
@@ skipping 29 matching lines @@
   {
     "cmd": [
       "[SLAVE_BUILD]/src/android_webview/buildbot/deps_whitelist.py",
       "--method",
       "android_rsync_build",
       "--path-to-deps",
       "[SLAVE_BUILD]/src/DEPS",
       "--output-json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "calculate blacklist",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"blacklist\": [@@@",
       "@@@STEP_LOG_LINE@json.output@    \"blacklist/project/1\", @@@",
       "@@@STEP_LOG_LINE@json.output@    \"blacklist/project/2\"@@@",
       "@@@STEP_LOG_LINE@json.output@  ]@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "rsync",
       "-rav",
       "--delete",
       "--delete-excluded",
       "--exclude=.svn",
       "--exclude=.git",
       "--exclude=blacklist/project/1",
       "--exclude=blacklist/project/2",
       "[SLAVE_BUILD]/src/",
       "[SLAVE_BUILD]/android-src/external/chromium_org"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "rsync chromium_org"
   },
   {
     "cmd": [
       "[BUILD]/scripts/slave/android/with_lunch",
       "[SLAVE_BUILD]/android-src",
       "full-eng",
       "[SLAVE_BUILD]/android-src/external/chromium_org/android_webview/tools/gyp_webview",
       "all"
     ],
     "cwd": "[SLAVE_BUILD]/android-src/external/chromium_org",
     "name": "gyp_webview"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/android-src/external/chromium_org/android_webview/tools/webview_licenses.py",
       "all_incompatible_directories"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "incompatible directories"
   },
   {
     "cmd": [
       "git",
       "diff",
       "--cached",
       "--name-only"
     ],
     "cwd": "[SLAVE_BUILD]/src",
     "name": "git diff to analyze patch",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@files@android_webview/buildbot/aosp_manifest.xml@@@",
       "@@@STEP_LOG_END@files@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
       "[SLAVE_BUILD]/src/testing/buildbot/trybot_analyze_config.json",
       "/path/to/tmp/json"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "read filter exclusion spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: 'testing/buildbot/trybot_analyze_config.json'@@@",
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"android_webview\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"exclusions\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      \"android_webview/.*\"@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
       "@@@STEP_LOG_LINE@json.output@  }, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"base\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"exclusions\": []@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "import sys; sys.exit(0)"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@excluded_files@android_webview/buildbot/aosp_manifest.xml (regex = 'android_webview/.*')@@@",
       "@@@STEP_LOG_END@excluded_files@@@"
     ]
   },
   {
     "cmd": [
       "[BUILD]/scripts/slave/android/with_lunch",
       "[SLAVE_BUILD]/android-src",
       "full-eng",
       "[BUILD]/scripts/slave/compile.py",
       "webview",
       "--build-dir",
       "[SLAVE_BUILD]",
       "--src-dir",
       "[SLAVE_BUILD]/android-src",
       "--build-tool",
       "make-android",
       "--verbose",
       "--clobber"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "compile"
   }
 ]