Fix is_manual_test for files with no file extension.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py
index 152b5f74f9dc7b161a76efe9b60e841c55a1b9e6..5ca2a3658fe4a4d0609e5b29f22e0faa923aa243 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/deps_updater.py
@@ -197,6 +197,8 @@ class DepsUpdater(object):
         Tests with "-manual" in the name are not considered manual tests
         if there is a corresponding JS automation file.
         """
+        if '.' not in basename:
+            return False
         basename_without_extension, _ = basename.rsplit('.', 1)

[Rick Byers, 2016/07/15 15:29:49]

nit: this would be slightly simpler as:
basename_without_extension, _ = os.path.splitext(basename)

That appears to handle the no-dot case for you automatically (the extension is
the empty string).

         if not basename_without_extension.endswith('-manual'):
             return False