Add [CEReactions] IDL attributes for Custom Elements V1

third_party/WebKit/Source/bindings/templates/methods.cpp

 {% from 'utilities.cpp' import declare_enum_validation_variable, v8_value_to_local_cpp_value %}
 
 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% if method.returns_promise and method.has_exception_state %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}Promise(const v8::FunctionCallbackInfo<v8::Value>& info, ExceptionState& exceptionState)
 {% else %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
 {% endif %}
 {
     {# Local variables #}
     {% if method.has_exception_state and not method.returns_promise %}
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "{{method.name}}", "{{interface_name}}", info.Holder(), info.GetIsolate());
     {% endif %}
     {# Overloaded methods have length checked during overload resolution #}
     {% if method.number_of_required_arguments and not method.overload_index %}
     if (UNLIKELY(info.Length() < {{method.number_of_required_arguments}})) {
         {{throw_minimum_arity_type_error(method, method.number_of_required_arguments) | indent(8)}}
     }
     {% endif %}
     {% if not method.is_static %}
     {{cpp_class}}* impl = {{v8_class}}::toImpl(info.Holder());
     {% endif %}
+    {% if method.is_ce_reactions %}
+    CEReactionsScope reactions;

[Yuki, 2016/06/06 06:13:56]

Ditto.

[kojii, 2016/06/07 07:51:17]

Done too.

+    {% endif %}
     {% if method.is_custom_element_callbacks %}
     V0CustomElementProcessingStack::CallbackDeliveryScope deliveryScope;
     {% endif %}
     {# Security checks #}
     {% if method.is_check_security_for_receiver %}
     {% if interface_name == 'EventTarget' %}
     // Performance hack for EventTarget.  Checking whether it's a Window or not
     // prior to the call to BindingSecurity::shouldAllowAccessTo increases 30%
     // of speed performance on Android Nexus 7 as of Dec 2015.  ALWAYS_INLINE
     // didn't work in this case.
@@ skipping 646 matching lines @@
 {% filter runtime_enabled(method.overloads.runtime_enabled_function_all
                           if method.overloads else
                           method.runtime_enabled_function) %}
 const V8DOMConfiguration::MethodConfiguration {{method.name}}MethodConfiguration = {{method_configuration(method)}};
 V8DOMConfiguration::installMethod(isolate, world, v8::Local<v8::Object>(), prototypeObject, interfaceObject, signature, {{method.name}}MethodConfiguration);
 {% endfilter %}{# runtime_enabled() #}
 {% endfilter %}{# exposed() #}
 {% endfor %}
 {% endif %}
 {%- endmacro %}