Fix V8 bindings for named constructors to set prototype object correctly

third_party/WebKit/Source/bindings/scripts/v8_attributes.py

Index: third_party/WebKit/Source/bindings/scripts/v8_attributes.py
diff --git a/third_party/WebKit/Source/bindings/scripts/v8_attributes.py b/third_party/WebKit/Source/bindings/scripts/v8_attributes.py
index 006bc6c2f922a7704e40d6a53df32e2bb9a2f4dd..d12a53c62e2f74635b89165ff155a55b894276ff 100644
--- a/third_party/WebKit/Source/bindings/scripts/v8_attributes.py
+++ b/third_party/WebKit/Source/bindings/scripts/v8_attributes.py
@@ -156,6 +156,7 @@ def attribute_context(interface, attribute, interfaces):
         'is_lenient_this': 'LenientThis' in extended_attributes,
         'is_nullable': idl_type.is_nullable,
         'is_explicit_nullable': idl_type.is_explicit_nullable,
+        'is_named_constructor': is_named_constructor_attribute(attribute),
         'is_partial_interface_member':
             'PartialInterfaceImplementedAs' in extended_attributes,
         'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
@@ -571,5 +572,10 @@ def is_constructor_attribute(attribute):
     return attribute.idl_type.name.endswith('Constructor')
 
 
+def is_named_constructor_attribute(attribute):
+    # FIXME: replace this with [NamedConstructor] extended attribute

[Yuki, 2017/01/19 09:57:28]

nit: FIXME is an old style in WebKit era, and we're now using the following
style.
  TODO(someone): ...

[bashi, 2017/01/19 09:58:01]

Can we remove this comment? I think FIXME comments like line 571 no longer make
sense.

[Yuki, 2017/01/19 10:09:30]

I'm fine to remove the comment.

[sashab, 2017/01/20 04:37:05]

Removed all 3 comments on lines 571, 566 and new added comment.

+    return attribute.idl_type.name.endswith('ConstructorConstructor')
+
+
 def update_constructor_attribute_context(interface, attribute, context):
     context['needs_constructor_getter_callback'] = context['measure_as'] or context['deprecate_as']