Telemetry: Add WPR data for large profiles.

tools/perf/profile_creators/profile_safe_url_list.py

 # 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.
 import json
 import os
 import random
 
 
 def GetShuffledSafeUrls():
-  """Returns a deterministic shuffling of safe urls. The profile generators
-  access the urls in order, and the urls are grouped by domain. The shuffling
-  reduces the load on external servers."""
+  """Returns a deterministic shuffling of safe urls.
+
+  The profile generators access the urls in order, and the urls are grouped by
+  domain. The shuffling reduces the load on external servers.
+  """
   random.seed(0)
-  url_list_copy = list(_GetSafeUrls())
+  url_list_copy = list(GetSafeUrls())
   random.shuffle(url_list_copy)
   return url_list_copy
 
 
-def _GetSafeUrls():
+def GetSafeUrls():
   """Returns a list of safe urls by loading them from a pre-generated file."""
   safe_url_dir = os.path.dirname(os.path.realpath(__file__))
   safe_url_path = os.path.join(safe_url_dir, "profile_safe_url_list.json")
   with open(safe_url_path, 'r') as safe_url_file:
     return json.load(safe_url_file)