telemetry: Add ct_run_benchmark to run benchmarks in CT's repository

tools/perf/ct_run_benchmark

Index: tools/perf/ct_run_benchmark
diff --git a/tools/perf/run_benchmark b/tools/perf/ct_run_benchmark
similarity index 56%
copy from tools/perf/run_benchmark
copy to tools/perf/ct_run_benchmark
index e077bb62a4d789b3908b4c4f52bef14c0dc08a07..f42ce08d49e854a8f304d90a1dc9ecfbeffd579e 100755
--- a/tools/perf/run_benchmark
+++ b/tools/perf/ct_run_benchmark
@@ -1,8 +1,11 @@
 #!/usr/bin/env python
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Copyright (c) 2014 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.
 
+# This script finds and executes benchmarks which live in Cluster Telemetry's
+# repository.
+
 import os
 import sys
 
@@ -12,7 +15,11 @@ from telemetry import benchmark_runner
 from telemetry.core import environment
 
 
+CT_BASE_DIR = os.path.join('/', 'b', 'storage', 'benchmarks')
+sys.path.append(os.path.join(CT_BASE_DIR))
+
+
 if __name__ == '__main__':
   base_dir = os.path.dirname(os.path.realpath(__file__))
-  benchmark_runner.config = environment.Environment([base_dir])
+  benchmark_runner.config = environment.Environment([CT_BASE_DIR])
   sys.exit(benchmark_runner.main())