In page_runner, only look in the page_set bucket for wpr files.

R=dtu@chromium.org, tonyg@chromium.org
BUG=356956

Review URL: https://codereview.chromium.org/330193003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279909 0039d316-1c4b-4281-b951-d872f2087c98

tools/telemetry/telemetry/page/page_runner.py

@@ -305,7 +305,8 @@ def _UpdatePageSetArchivesIfChanged(page_set):
   if page_set.credentials_path:
     try:
       cloud_storage.GetIfChanged(
-          os.path.join(page_set.base_dir, page_set.credentials_path))
+          os.path.join(page_set.base_dir, page_set.credentials_path),
+          page_set.bucket)
     except (cloud_storage.CredentialsError, cloud_storage.PermissionError,
             cloud_storage.CloudStorageError) as e:
       logging.warning('Cannot retrieve credential file %s due to cloud storage '
@@ -328,7 +329,7 @@ def _UpdatePageSetArchivesIfChanged(page_set):
             os.path.join(dirpath, filename))
         if extension != '.sha1':
           continue
-        cloud_storage.GetIfChanged(path)
+        cloud_storage.GetIfChanged(path, page_set.bucket)
 
 
 def Run(test, page_set, expectations, finder_options):