Roll recipe dependencies (nontrivial).

scripts/slave/recipes/ios/try.expected/gn.json

Index: scripts/slave/recipes/ios/try.expected/gn.json
diff --git a/scripts/slave/recipes/ios/try.expected/gn.json b/scripts/slave/recipes/ios/try.expected/gn.json
index 70553a3652102a4688f37ba921b88f8beb96b6d5..ad35cbffe53653a2642c9665b8193d3a06d515af 100644
--- a/scripts/slave/recipes/ios/try.expected/gn.json
+++ b/scripts/slave/recipes/ios/try.expected/gn.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)@@@",
@@ -52,7 +51,6 @@
       "--force",
       "--output_manifest"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -132,7 +130,6 @@
       "[SLAVE_BUILD]/src/ios/build/bots/tryserver.fake/ios.json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "read build config",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
@@ -164,7 +161,6 @@
       "-e",
       "{\n  \"GYP_DEFINES\": [], \n  \"additional_compile_targets\": [\n    \"All\"\n  ], \n  \"compiler\": \"ninja\", \n  \"configuration\": \"Debug\", \n  \"env\": {}, \n  \"gn_args\": [\n    \"target_os=\\\"ios\\\"\", \n    \"ios_enable_code_signing=false\", \n    \"use_goma=true\"\n  ], \n  \"mb_type\": \"gn\", \n  \"sdk\": \"iphonesimulator8.0\", \n  \"tests\": [\n    {\n      \"app\": \"fake tests\", \n      \"device type\": \"fake device\", \n      \"os\": \"8.1\"\n    }\n  ], \n  \"triggered bots\": {}, \n  \"use_analyze\": true, \n  \"xcode version\": \"fake xcode version\"\n}"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "finalize build config"
   },
   {
@@ -175,7 +171,6 @@
       "--version",
       "fake xcode version"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "find xcode",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
@@ -189,7 +184,6 @@
       "RECIPE_PACKAGE_REPO[depot_tools]/gclient.py",
       "runhooks"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GYP_CHROMIUM_NO_ACTION": "1",
       "GYP_CROSSCOMPILE": "1",
@@ -205,7 +199,6 @@
   },
   {
     "cmd": [],
-    "cwd": "[SLAVE_BUILD]",
     "name": "ensure_goma"
   },
   {
@@ -220,7 +213,6 @@
       "--json-output",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "ensure_goma.install cipd",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@",
@@ -245,7 +237,6 @@
       "--service-account-json",
       "/creds/service_accounts/service-account-goma-client.json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "ensure_goma.ensure_installed",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@",
@@ -276,7 +267,6 @@
       "[CACHE]/cipd/goma",
       "//out/Debug-iphonesimulator"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -305,7 +295,6 @@
       "[SLAVE_BUILD]/src/testing/buildbot/trybot_analyze_config.json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "read filter exclusion spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: 'testing/buildbot/trybot_analyze_config.json'@@@",
@@ -331,7 +320,6 @@
       "-u",
       "import sys; sys.exit(0)"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "analyze",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@excluded_files@foo.cc (regex = 'f.*')@@@",
@@ -370,7 +358,6 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
@@ -440,7 +427,6 @@
       "--version",
       "8.1"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "fake tests (fake device iOS 8.1)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",