[tools/perf] Enable smoke coverage for all telemetry benchmarks

tools/perf/perf.isolate

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'includes': [
     './chrome_telemetry_build/telemetry_chrome_test.isolate',
   ],
   'conditions': [
-    ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
+    ['OS=='android' or OS=='linux' or OS=='mac' or OS=='win'', {
       'variables': {
         'files': [
          './',
-          # Field trial configs
+          # Field trial configs.
           '../variations/',
           '../../testing/variations/',
+          # For blink_perf benchmarks.
+          '../../third_party/WebKit/PerformanceTests/',
+
+          # For blink_perf.BlinkPerfPywebsocket benchmark.
+          '../../third_party/pywebsocket/',
         ],
       },
     }],
   ]
 }