Make NodeFilter a legacy callback interface.

third_party/WebKit/Source/bindings/scripts/utilities.py

Index: third_party/WebKit/Source/bindings/scripts/utilities.py
diff --git a/third_party/WebKit/Source/bindings/scripts/utilities.py b/third_party/WebKit/Source/bindings/scripts/utilities.py
index 98d42660595d63a766a5fb217003b9fc139be894..53c9b1a908326817ca59a320f6b8f89f14b96493 100644
--- a/third_party/WebKit/Source/bindings/scripts/utilities.py
+++ b/third_party/WebKit/Source/bindings/scripts/utilities.py
@@ -344,9 +344,9 @@ def write_pickle_file(pickle_filename, data):
 # Leading and trailing context (e.g. following '{') used to avoid false matches.
 ################################################################################
 
-def is_callback_interface_from_idl(file_contents):
+def is_non_legacy_callback_interface_from_idl(file_contents):
     match = re.search(r'callback\s+interface\s+\w+\s*{', file_contents)

[bashi, 2017/04/27 08:49:49]

Could you add a comment why we search 'const' to detect legacy callback
interface?

[Yuki, 2017/04/27 12:18:29]

|file_contents| doesn't include any comment, right?

[tkent, 2017/04/28 06:13:36]

Done. Added a comment.

-    return bool(match)
+    return bool(match) and not re.search(r'\bconst\b', file_contents)
 
 
 def should_generate_impl_file_from_idl(file_contents):