Unify casing of function names in devtools.

mojo/devtools/common/devtoolslib/http_server.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 atexit
 import datetime
 import email.utils
 import errno
 import gzip
 import hashlib
@@ skipping 153 matching lines @@
       return SimpleHTTPServer.SimpleHTTPRequestHandler.guess_type(self, path)
 
     def log_message(self, *_):
       """Override the base class method to disable logging."""
       pass
 
   RequestHandler.protocol_version = 'HTTP/1.1'
   return RequestHandler
 
 
-def StartHttpServer(local_dir_path, host_port=0, additional_mappings=None):
+def start_http_server(local_dir_path, host_port=0, additional_mappings=None):
   """Starts an http server serving files from |local_dir_path| on |host_port|.
 
   Args:
     local_dir_path: Path to the local filesystem directory to be served over
         http under.
     host_port: Port on the host machine to run the server on. Pass 0 to use a
         system-assigned port.
     additional_mappings: List of tuples (prefix, local_base_path) mapping
         URLs that start with |prefix| to local directory at |local_base_path|.
         The prefixes should skip the leading slash.
@@ skipping 19 matching lines @@
     return httpd.server_address
   except socket.error as v:
     error_code = v[0]
     print 'Failed to start http server for %s on port %d: %s.' % (
         local_dir_path, host_port, os.strerror(error_code))
     if error_code == errno.EADDRINUSE:
       print ('  Run `fuser %d/tcp` to find out which process is using the port.'
              % host_port)
     print '---'
     raise