Reland of PyLint fixes for tools-webrtc and webrtc/tools

cleanup_links.py

Index: cleanup_links.py
diff --git a/cleanup_links.py b/cleanup_links.py
index 46a7a56c8662b94f39c766e7659d0e770e572a45..9dafda7f406fc857680ad1de4e611c58bb298d07 100755
--- a/cleanup_links.py
+++ b/cleanup_links.py
@@ -53,7 +53,7 @@ class WebRTCLinkSetup(object):
           del self._links_db[source]
 
 
-def _initialize_database(filename):
+def _InitializeDatabase(filename):
   links_database = shelve.open(filename)
   # Wipe the database if this version of the script ends up looking at a
   # newer (future) version of the links db, just to be sure.
@@ -89,7 +89,7 @@ def main():
   # The database file gets .db appended on some platforms.
   db_filenames = [LINKS_DB, LINKS_DB + '.db']
   if any(os.path.isfile(f) for f in db_filenames):
-    links_database = _initialize_database(LINKS_DB)
+    links_database = _InitializeDatabase(LINKS_DB)
     try:
       symlink_creator = WebRTCLinkSetup(links_database, options.dry_run)
       symlink_creator.CleanupLinks()