Roll recipe dependencies (nontrivial).

scripts/slave/recipes/v8/auto_tag.expected/dry_run.json

Index: scripts/slave/recipes/v8/auto_tag.expected/dry_run.json
diff --git a/scripts/slave/recipes/v8/auto_tag.expected/dry_run.json b/scripts/slave/recipes/v8/auto_tag.expected/dry_run.json
index 0bcb26ccf94276659582925d47a271e1b8ccd7dc..7f3756888086d9628f934db4913fb5d4455264d8 100644
--- a/scripts/slave/recipes/v8/auto_tag.expected/dry_run.json
+++ b/scripts/slave/recipes/v8/auto_tag.expected/dry_run.json
@@ -8,7 +8,6 @@
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'custom_vars': {'chromium_trunk': 'svn://svn-mirror.golo.chromium.org/chrome/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'v8', 'url': 'https://chromium.googlesource.com/v8/v8'}]"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -28,7 +27,6 @@
       "--output-json",
       "/path/to/tmp/json"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -113,7 +111,6 @@
       "\n#define V8_MAJOR_VERSION 3\n#define V8_MINOR_VERSION 4\n#define V8_BUILD_NUMBER 3\n#define V8_PATCH_LEVEL 3\n",
       "[SLAVE_BUILD]/v8/include/v8-version.h"
     ],
-    "cwd": "[SLAVE_BUILD]",
     "name": "Increment version"
   },
   {
@@ -128,7 +125,6 @@
   },
   {
     "cmd": [],
-    "cwd": "[SLAVE_BUILD]",
     "name": "Dry-run commit"
   },
   {
@@ -166,7 +162,6 @@
   },
   {
     "cmd": [],
-    "cwd": "[SLAVE_BUILD]",
     "name": "Dry-run tag 3.4.3.2"
   },
   {
@@ -186,7 +181,6 @@
   },
   {
     "cmd": [],
-    "cwd": "[SLAVE_BUILD]",
     "name": "Dry-run lkgr update c1a7fd0c98a80c52fcf6763850d2ee1c41cfe8d6"
   },
   {