[telemetry] Automatic hash file creation and upload to Cloud Storage.

tools/perf/PRESUBMIT.py

Index: tools/perf/PRESUBMIT.py
diff --git a/tools/perf/PRESUBMIT.py b/tools/perf/PRESUBMIT.py
index e2a028e6d6e4f19c55ed9c95f32d81233cbcfe10..9bb8eb1a68d2cc19372c7ed20b85a9246416c067 100644
--- a/tools/perf/PRESUBMIT.py
+++ b/tools/perf/PRESUBMIT.py
@@ -4,14 +4,16 @@
 import os
 import sys
 
+
 PYLINT_BLACKLIST = []
 PYLINT_DISABLED_WARNINGS = ['R0923', 'R0201', 'E1101']
 
+
 def _CommonChecks(input_api, output_api):
   results = []
   old_sys_path = sys.path
   try:
-    sys.path = [os.path.join('..', 'telemetry')] + sys.path
+    sys.path = [os.path.join(os.pardir, 'telemetry')] + sys.path
     results.extend(input_api.canned_checks.RunPylint(
         input_api, output_api,
         black_list=PYLINT_BLACKLIST,
@@ -20,11 +22,13 @@ def _CommonChecks(input_api, output_api):
     sys.path = old_sys_path
   return results
 
+
 def CheckChangeOnUpload(input_api, output_api):
   report = []
   report.extend(_CommonChecks(input_api, output_api))
   return report
 
+
 def CheckChangeOnCommit(input_api, output_api):
   report = []
   report.extend(_CommonChecks(input_api, output_api))