webrtc: use correct cwd for running tests

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

 [
   {
     "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",
       "[BUILDER_CACHE]/Linux_UBSan",
       "511"
     ],
     "name": "makedirs checkout path",
@@ skipping 258 matching lines @@
       "--step-name=audio_decoder_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/audio_decoder_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "audio_decoder_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=common_audio_unittests",
       "--step-name=common_audio_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/common_audio_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "common_audio_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=common_video_unittests",
       "--step-name=common_video_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/common_video_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "common_video_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=modules_tests",
       "--step-name=modules_tests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/modules_tests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "modules_tests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=modules_unittests",
       "--step-name=modules_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/modules_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "modules_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=peerconnection_unittests",
       "--step-name=peerconnection_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/peerconnection_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "peerconnection_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=rtc_media_unittests",
       "--step-name=rtc_media_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/rtc_media_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "rtc_media_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=rtc_pc_unittests",
       "--step-name=rtc_pc_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/rtc_pc_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "rtc_pc_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=rtc_unittests",
       "--step-name=rtc_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/rtc_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "rtc_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=system_wrappers_unittests",
       "--step-name=system_wrappers_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/system_wrappers_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "system_wrappers_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=test_support_unittests",
       "--step-name=test_support_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/test_support_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "test_support_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=tools_unittests",
       "--step-name=tools_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/tools_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "tools_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=video_engine_tests",
       "--step-name=video_engine_tests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/video_engine_tests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "video_engine_tests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=voice_engine_unittests",
       "--step-name=voice_engine_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/voice_engine_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "voice_engine_unittests"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--test-type=xmllite_xmpp_unittests",
       "--step-name=xmllite_xmpp_unittests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--run-python-script",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "[BUILDER_CACHE]/Linux_UBSan/src/third_party/gtest-parallel/gtest-parallel",
       "[BUILDER_CACHE]/Linux_UBSan/src/out/Release/xmllite_xmpp_unittests",
       "--"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "xmllite_xmpp_unittests"
   },
   {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--build-properties",
       "{\"BUILD_CONFIG\": \"Release\", \"buildername\": \"Linux UBSan\", \"buildnumber\": 1337, \"mastername\": \"client.webrtc\", \"path_config\": \"kitchen\", \"recipe\": \"webrtc/standalone\", \"revision\": \"12345\", \"slavename\": \"slavename\"}",
       "--annotate=gtest",
       "--test-type=webrtc_nonparallel_tests",
       "--step-name=webrtc_nonparallel_tests",
       "--generate-json-file",
       "-o",
       "gtest-results/webrtc_nonparallel_tests",
       "--builder-name=Linux UBSan",
       "--slave-name=slavename",
       "--build-number=1337",
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "webrtc_nonparallel_tests"
     ],
+    "cwd": "[BUILDER_CACHE]/Linux_UBSan",
     "name": "webrtc_nonparallel_tests"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]