Roll recipe dependencies (nontrivial).

scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json

Index: scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json
index 547982d52ca65395404f12f611b56c82291333d4..7ea534b2107b2347ea40099f0d8a9c9dc86b059f 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_android32_gn.json
@@ -24,7 +24,6 @@
       "src@12345",
       "--output_manifest"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -63,7 +62,6 @@
       "RECIPE_MODULE[build::webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -76,7 +74,6 @@
       "[SLAVE_BUILD]/src/out/build_product.zip",
       "[SLAVE_BUILD]/src"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "clean local files",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ -101,7 +98,6 @@
       "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_CHROMIUM_NO_ACTION": "1",
@@ -121,7 +117,6 @@
       "//out/Release",
       "--args=is_debug=false target_os=\"android\" target_cpu=\"arm\" use_goma=true goma_dir=\"[BUILD]/goma\""
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "gn"
   },
   {
@@ -155,7 +150,6 @@
       "--",
       "all"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"