Move builder_spec, [dm|nanobench]_flags, builder_name_schema to recipes

infra/bots/recipes/swarm_compile.expected/failed_compile.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[CUSTOM_/_B_WORK]",
       "511"
     ],
     "name": "makedirs checkout_path",
@@ skipping 54 matching lines @@
       "@@@STEP_LOG_LINE@json.output@      \"revision\": 164710@@@",
       "@@@STEP_LOG_LINE@json.output@    }@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@",
       "@@@SET_BUILD_PROPERTY@got_revision@164710@@@"
     ]
   },
   {
     "cmd": [
-      "python",
-      "-u",
-      "[CUSTOM_/_B_WORK]/skia/tools/buildbot_spec.py",
-      "/path/to/tmp/json",
-      "Build-Ubuntu-GCC-x86-Debug"
-    ],
-    "cwd": "[CUSTOM_/_B_WORK]/skia",
-    "name": "exec buildbot_spec.py",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"build_targets\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"most\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  ], @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"builder_cfg\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"compiler\": \"GCC\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"configuration\": \"Debug\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"is_trybot\": false, @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"os\": \"Ubuntu\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"role\": \"Build\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"target_arch\": \"x86\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"configuration\": \"Debug\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"dm_flags\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"--dummy-flags\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  ], @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"do_perf_steps\": false, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"do_test_steps\": false, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"env\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"GYP_DEFINES\": \"skia_arch_type=x86 skia_warnings_as_errors=1\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"nanobench_flags\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"--dummy-flags\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  ], @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"upload_dm_results\": true, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"upload_perf_results\": false@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
       "make",
       "most"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
       "BUILDTYPE": "Debug",
       "CHROME_HEADLESS": "1",
       "CHROME_PATH": "[SLAVE_BUILD]/src",
       "GYP_DEFINES": "skia_arch_type=x86 skia_warnings_as_errors=1",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]:RECIPE_PACKAGE_REPO[depot_tools]",
       "SKIA_OUT": "[CUSTOM_/_B_WORK]/skia/out/Build-Ubuntu-GCC-x86-Debug"
     },
     "name": "build most",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
       "@@@STEP_FAILURE@@@"
     ]
   },
   {
     "name": "$result",
     "reason": "Step('build most') failed with return_code 1",
     "recipe_result": null,
     "status_code": 1
   }
 ]