bindings: Use an alias for @@iterator in certain declarations.

third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl

 {% filter format_blink_cpp_source_code %}
 
 {% include 'copyright_block.txt' %}
 #include "{{v8_class_or_partial}}.h"
 
 {% for filename in cpp_includes if filename != '%s.h' % cpp_class_or_partial %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace blink {
@@ skipping 513 matching lines @@
   prototypeTemplate->SetIntrinsicDataProperty(V8AtomicString(isolate, "entries"), v8::kArrayProto_entries);
   prototypeTemplate->SetIntrinsicDataProperty(V8AtomicString(isolate, "forEach"), v8::kArrayProto_forEach);
   prototypeTemplate->SetIntrinsicDataProperty(V8AtomicString(isolate, "keys"), v8::kArrayProto_keys);
   prototypeTemplate->SetIntrinsicDataProperty(V8AtomicString(isolate, "values"), v8::kArrayProto_values);
   {% endif %}
   {% endif %}
 
   {% if iterator_method %}
   {% filter exposed(iterator_method.exposed_test) %}
   {% filter runtime_enabled(iterator_method.runtime_enabled_feature_name) %}
+  {% set symbol_alias = '"%s"' % iterator_method_alias
+                        if iterator_method_alias else 'nullptr' %}
   // Iterator (@@iterator)
-  static const V8DOMConfiguration::SymbolKeyedMethodConfiguration symbolKeyedIteratorConfiguration = { v8::Symbol::GetIterator, {{v8_class_or_partial}}::iteratorMethodCallback, 0, v8::DontEnum, V8DOMConfiguration::kOnPrototype, V8DOMConfiguration::kCheckHolder, V8DOMConfiguration::kDoNotCheckAccess };
+  static const V8DOMConfiguration::SymbolKeyedMethodConfiguration symbolKeyedIteratorConfiguration = { v8::Symbol::GetIterator, {{symbol_alias}}, {{v8_class_or_partial}}::iteratorMethodCallback, 0, v8::DontEnum, V8DOMConfiguration::kOnPrototype, V8DOMConfiguration::kCheckHolder, V8DOMConfiguration::kDoNotCheckAccess };
   V8DOMConfiguration::InstallMethod(isolate, world, prototypeTemplate, signature, symbolKeyedIteratorConfiguration);
   {% endfilter %}
   {% endfilter %}
   {% endif %}
 
   {% if interface_name == 'Iterator' %}
   // The WebIDL spec says when an interface has pair iterators the iterators it
   // returns must be instances of the "default iterator object" whose
   // [[Prototype]] points to an "iterator prototype object" whose
   // [[Prototype]], on its turn, points to %IteratorPrototype%. next() must be
@@ skipping 263 matching lines @@
 {% endif %}
 }
 {% endif %}
 
 {% endblock %}
 {##############################################################################}
 {% block partial_interface %}{% endblock %}
 }  // namespace blink
 
 {% endfilter %}{# format_blink_cpp_source_code #}