Roll recipe dependencies (nontrivial).

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

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_mac_baremetal.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_mac_baremetal.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_mac_baremetal.json
index a92a23fd5d885a1adc1be8cfebae73663768ea69..5856b2548b74a2420c235731766db7113b29e831 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_mac_baremetal.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_mac_baremetal.json
@@ -5,7 +5,6 @@
       "--json-file",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "host and tools info",
     "~followup_annotations": [
       "@@@STEP_TEXT@<br />OS X 1.2.3, Xcode 6.7.8 (5D342509a)@@@",
@@ -53,7 +52,6 @@
       "src@12345",
       "--output_manifest"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -92,7 +90,6 @@
       "RECIPE_MODULE[build::webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -104,7 +101,6 @@
       "python",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/cleanup_temp.py"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -114,7 +110,6 @@
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "runhooks"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "GYP_DEFINES": "clang=1 component=static_library dcheck_always_on=1 fastbuild=1 ffmpeg_branding=Chrome gomadir='[BUILD]/goma' rtc_use_264=1 target_arch=x64 use_goma=1",
@@ -133,7 +128,6 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -178,7 +172,6 @@
       "--",
       "All"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -194,7 +187,6 @@
       "-u",
       "RECIPE_MODULE[build::webrtc]/resources/ensure_webcam_is_running.py"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "webcam_check"
   },
   {
@@ -218,7 +210,6 @@
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "audio_device_tests"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "audio_device_tests"
   },
   {
@@ -243,7 +234,6 @@
       "voe_auto_test",
       "--automated"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "voe_auto_test"
   },
   {
@@ -267,7 +257,6 @@
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "video_capture_tests"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "video_capture_tests"
   },
   {
@@ -291,7 +280,6 @@
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "webrtc_perf_tests"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "webrtc_perf_tests"
   },
   {