Roll recipe dependencies (nontrivial).

scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.json

Index: scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.json
diff --git a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.json b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.json
index cf9c351e8c54742e985d04d2471b5f6d0820dd2d..4db9276a84103943cda58b25b49a72c0fe6e87a0 100644
--- a/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.json
+++ b/scripts/slave/recipes/webrtc/standalone.expected/client_webrtc_mac64_release.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)@@@",
@@ -47,7 +46,6 @@
       "src@12345",
       "--output_manifest"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -86,7 +84,6 @@
       "RECIPE_MODULE[build::webrtc]/resources/cleanup_files.py",
       "[SLAVE_BUILD]/src/out"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "clean test output files"
   },
   {
@@ -98,7 +95,6 @@
       "python",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/cleanup_temp.py"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
   {
@@ -108,7 +104,6 @@
       "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 ffmpeg_branding=Chrome gomadir='[BUILD]/goma' rtc_use_264=1 target_arch=x64 use_goma=1",
@@ -127,7 +122,6 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -170,7 +164,6 @@
       "--",
       "All"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -202,7 +195,6 @@
       "[SLAVE_BUILD]/src/out/Release/audio_decoder_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "audio_decoder_unittests"
   },
   {
@@ -227,7 +219,6 @@
       "[SLAVE_BUILD]/src/out/Release/common_audio_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_audio_unittests"
   },
   {
@@ -252,7 +243,6 @@
       "[SLAVE_BUILD]/src/out/Release/common_video_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "common_video_unittests"
   },
   {
@@ -277,7 +267,6 @@
       "[SLAVE_BUILD]/src/out/Release/modules_tests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_tests"
   },
   {
@@ -302,7 +291,6 @@
       "[SLAVE_BUILD]/src/out/Release/modules_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "modules_unittests"
   },
   {
@@ -327,7 +315,6 @@
       "[SLAVE_BUILD]/src/out/Release/peerconnection_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "peerconnection_unittests"
   },
   {
@@ -352,7 +339,6 @@
       "[SLAVE_BUILD]/src/out/Release/rtc_media_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_media_unittests"
   },
   {
@@ -377,7 +363,6 @@
       "[SLAVE_BUILD]/src/out/Release/rtc_pc_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_pc_unittests"
   },
   {
@@ -402,7 +387,6 @@
       "[SLAVE_BUILD]/src/out/Release/rtc_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "rtc_unittests"
   },
   {
@@ -427,7 +411,6 @@
       "[SLAVE_BUILD]/src/out/Release/system_wrappers_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "system_wrappers_unittests"
   },
   {
@@ -452,7 +435,6 @@
       "[SLAVE_BUILD]/src/out/Release/test_support_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "test_support_unittests"
   },
   {
@@ -477,7 +459,6 @@
       "[SLAVE_BUILD]/src/out/Release/tools_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "tools_unittests"
   },
   {
@@ -502,7 +483,6 @@
       "[SLAVE_BUILD]/src/out/Release/video_engine_tests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "video_engine_tests"
   },
   {
@@ -527,7 +507,6 @@
       "[SLAVE_BUILD]/src/out/Release/voice_engine_unittests",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "voice_engine_unittests"
   },
   {
@@ -552,7 +531,6 @@
       "[SLAVE_BUILD]/src/out/Release/libjingle_peerconnection_objc_test.app/Contents/MacOS/libjingle_peerconnection_objc_test",
       "--"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "libjingle_peerconnection_objc_test"
   },
   {
@@ -579,7 +557,6 @@
       "--revision=f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
       "webrtc_nonparallel_tests"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "webrtc_nonparallel_tests"
   },
   {