Roll recipe dependencies (nontrivial).

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

Index: scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
index 6ac28b18a9f297e79910010e26c7bfa46910f3cf..1e1108c82ead53e4025c20682cbd1c1a5498c296 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_linux_memcheck.json
@@ -30,7 +30,6 @@
       "src@12345",
       "--output_manifest"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -69,7 +68,6 @@
       "RECIPE_MODULE[build::webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -81,7 +79,6 @@
       "python",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/cleanup_temp.py"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -91,7 +88,6 @@
       "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": "build_for_tool=memcheck 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",
@@ -132,7 +128,6 @@
       "--",
       "All"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -171,7 +166,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "audio_decoder_unittests"
   },
   {
@@ -203,7 +197,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_audio_unittests"
   },
   {
@@ -235,7 +228,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_video_unittests"
   },
   {
@@ -267,7 +259,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_tests"
   },
   {
@@ -299,7 +290,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_unittests"
   },
   {
@@ -331,7 +321,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "peerconnection_unittests"
   },
   {
@@ -363,7 +352,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_media_unittests"
   },
   {
@@ -395,7 +383,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_pc_unittests"
   },
   {
@@ -427,7 +414,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_unittests"
   },
   {
@@ -459,7 +445,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "system_wrappers_unittests"
   },
   {
@@ -491,7 +476,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "test_support_unittests"
   },
   {
@@ -523,7 +507,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "tools_unittests"
   },
   {
@@ -555,7 +538,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "video_engine_tests"
   },
   {
@@ -587,7 +569,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "voice_engine_unittests"
   },
   {
@@ -619,7 +600,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "webrtc_nonparallel_tests"
   },
   {