Adding Findit variable builders corresponding to those in chromium.webkit

masters/master.tryserver.chromium.android/builders.pyl

Index: masters/master.tryserver.chromium.android/builders.pyl
diff --git a/masters/master.tryserver.chromium.android/builders.pyl b/masters/master.tryserver.chromium.android/builders.pyl
index 74c3a150d4b7b76954f0d5ca757cfda2ad0892e2..1d9b1776a5deded27b71a8257f3773afa2f89d08 100644
--- a/masters/master.tryserver.chromium.android/builders.pyl
+++ b/masters/master.tryserver.chromium.android/builders.pyl
@@ -152,6 +152,13 @@
       "slavebuilddir": "android_chromium_variable",
       "slave_pools": ["ccompute_optional_bots"],
     },
+    "android_chromium_variable_nexus4": {
+      "builder_timeout_s": 6900,  # 60 * 115
+      "recipe": "findit/chromium/compile",
+      "scheduler": None,
+      "slavebuilddir": "android_chromium_variable_nexus4",
+      "slave_pools": ["ccompute_optional_bots"],
+    },
     "android_chromium_variable_archive": {
       "builder_timeout_s": 6900,  # 60 * 115
       "recipe": "findit/chromium/compile",