Unify casing of function names in devtools.

mojo/devtools/common/devtoolslib/linux_shell.py

Index: mojo/devtools/common/devtoolslib/linux_shell.py
diff --git a/mojo/devtools/common/devtoolslib/linux_shell.py b/mojo/devtools/common/devtoolslib/linux_shell.py
index d3d8624dd952ac3f706cfc8d98283d1374185278..6e03e6fb711af9379e00d58d9f878d507cbf175c 100644
--- a/mojo/devtools/common/devtoolslib/linux_shell.py
+++ b/mojo/devtools/common/devtoolslib/linux_shell.py
@@ -39,8 +39,8 @@ class LinuxShell(Shell):
     Returns:
       The url that the shell can use to access the content of |local_dir_path|.
     """
-    return 'http://%s:%d/' % http_server.StartHttpServer(local_dir_path, port,
-                                                         additional_mappings)
+    return 'http://%s:%d/' % http_server.start_http_server(local_dir_path, port,
+                                                           additional_mappings)
 
   def ForwardHostPortToShell(self, host_port):
     """Forwards a port on the host machine to the same port wherever the shell