Clean up some discrepancies in the perf recipe configs

scripts/slave/recipes/bisection/desktop_bisect.expected/basic_perf_tryjob_with_metric.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",
       "[BUILDER_CACHE]/linux_perf_bisect",
       "511"
     ],
     "name": "makedirs checkout path",
@@ skipping 194 matching lines @@
       "GYP_CHROMIUM_NO_ACTION": "1",
       "GYP_DEFINES": "branding=Chrome buildtype=Official component=static_library gomadir='[CACHE]/cipd/goma' target_arch=x64 use_goma=1",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks (with patch)"
   },
   {
     "cmd": [
       "python",
       "-u",
+      "[BUILDER_CACHE]/linux_perf_bisect/src/testing/scripts/get_compile_targets.py",
+      "--output",
+      "/path/to/tmp/json",
+      "--",
+      "--build-config-fs",
+      "Release",
+      "--paths",
+      "{\"checkout\": \"[BUILDER_CACHE]/linux_perf_bisect/src\", \"runit.py\": \"RECIPE_PACKAGE_REPO[build]/scripts/tools/runit.py\", \"runtest.py\": \"RECIPE_PACKAGE_REPO[build]/scripts/slave/runtest.py\"}",
+      "--properties",
+      "{\"buildername\": \"linux_perf_bisect\", \"buildnumber\": 571, \"mastername\": \"tryserver.chromium.perf\", \"slavename\": \"TestSlavename\", \"target_platform\": \"linux\"}"
+    ],
+    "name": "get compile targets for scripts",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
+      "[BUILDER_CACHE]/linux_perf_bisect/src/testing/buildbot/tryserver.chromium.perf.json",
+      "/path/to/tmp/json"
+    ],
+    "name": "read test spec (tryserver.chromium.perf.json)",
+    "~followup_annotations": [
+      "@@@STEP_TEXT@path: [BUILDER_CACHE]/linux_perf_bisect/src/testing/buildbot/tryserver.chromium.perf.json@@@",
+      "@@@STEP_LOG_LINE@json.output@{}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
+    "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",
       "[BUILDER_CACHE]/linux_perf_bisect",
       "511"
     ],
     "name": "makedirs checkout path (2)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys, os@@@",
       "@@@STEP_LOG_LINE@python.inline@path = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@mode = int(sys.argv[2])@@@",
@@ skipping 574 matching lines @@
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]