Roll recipe dependencies (nontrivial).

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

Index: scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_linux_memcheck.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_linux_memcheck.json b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_linux_memcheck.json
index 9b02b40175ed364c66fbe77843373afd28dce504..551d1838f865b0fd3bf90b2245d460f635bb8807 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_linux_memcheck.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_linux_memcheck.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"
   },
   {
@@ -75,7 +73,6 @@
       "python",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/cleanup_temp.py"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -85,7 +82,6 @@
       "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 ffmpeg_branding=Chrome gomadir='[BUILD]/goma' rtc_use_264=1 target_arch=x64 use_goma=1",
@@ -124,7 +120,6 @@
       "--",
       "All"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -163,7 +158,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "audio_decoder_unittests"
   },
   {
@@ -195,7 +189,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_audio_unittests"
   },
   {
@@ -227,7 +220,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_video_unittests"
   },
   {
@@ -259,7 +251,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_tests"
   },
   {
@@ -291,7 +282,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_unittests"
   },
   {
@@ -323,7 +313,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "peerconnection_unittests"
   },
   {
@@ -355,7 +344,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_media_unittests"
   },
   {
@@ -387,7 +375,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_pc_unittests"
   },
   {
@@ -419,7 +406,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_unittests"
   },
   {
@@ -451,7 +437,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "system_wrappers_unittests"
   },
   {
@@ -483,7 +468,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "test_support_unittests"
   },
   {
@@ -515,7 +499,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "tools_unittests"
   },
   {
@@ -547,7 +530,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "video_engine_tests"
   },
   {
@@ -579,7 +561,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "voice_engine_unittests"
   },
   {
@@ -611,7 +592,6 @@
       "--tool",
       "memcheck"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "webrtc_nonparallel_tests"
   },
   {