Add support for cc_perftests and other non-telemetry gtest based tests.

scripts/slave/recipes/chromium.expected/full_chromium_fyi_Print_Preview_Mac.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "chromium.fyi",
       "--builder",
       "Print Preview Mac",
@@ skipping 82 matching lines @@
       "-u",
       "[SLAVE_BUILD]/src/testing/scripts/get_compile_targets.py",
       "--output",
       "/path/to/tmp/json",
       "--",
       "--build-config-fs",
       "Release",
       "--paths",
       "{\"build\": \"[BUILD]\", \"checkout\": \"[SLAVE_BUILD]/src\"}",
       "--properties",
-      "{\"buildername\": \"Print Preview Mac\", \"buildnumber\": 571, \"slavename\": \"TestSlavename\"}"
+      "{\"buildername\": \"Print Preview Mac\", \"buildnumber\": 571, \"mastername\": \"chromium.fyi\", \"slavename\": \"TestSlavename\", \"target_platform\": \"mac\"}"
     ],
     "name": "get compile targets for scripts",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
@@ skipping 40 matching lines @@
       "--run-python-script",
       "[SLAVE_BUILD]/src/third_party/WebKit/Tools/Scripts/run-webkit-tests",
       "--write-full-results-to",
       "/path/to/tmp/json",
       "--platform",
       "browser_test.mac"
     ],
     "name": "print_preview_tests"
   }
 ]