IDL: Drop [PerContextEnabled] extended attribute

Source/bindings/templates/methods.cpp

 {% from 'conversions.cpp' import declare_enum_validation_variable, v8_value_to_local_cpp_value %}
 
 
 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 {% 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)
@@ skipping 611 matching lines @@
   'static_cast<v8::PropertyAttribute>(%s)' % ' | '.join(method.property_attributes)
   if method.property_attributes else 'v8::None' %}
 {% set only_exposed_to_private_script = 'V8DOMConfiguration::OnlyExposedToPrivateScript' if method.only_exposed_to_private_script else 'V8DOMConfiguration::ExposedToAllScripts' %}
 const V8DOMConfiguration::MethodConfiguration {{method.name}}MethodConfiguration = {
     "{{method.name}}", {{method_callback}}, {{method_callback_for_main_world}}, {{method_length}}, {{only_exposed_to_private_script}},
 };
 V8DOMConfiguration::installMethod(isolate, {{method.function_template}}, {{method.signature}}, {{property_attribute}}, {{method.name}}MethodConfiguration);
 {%- endmacro %}
 
 {######################################}
 {% macro install_conditionally_enabled_methods() %}

[Jens Widell, 2015/04/23 05:58:06]

Turns out we can't simply remove this by dropping [PerContextEnabled] since
[Exposed] methods are also conditionally enabled and handled by this code.

 void {{v8_class_or_partial}}::installConditionallyEnabledMethods(v8::Local<v8::Object> prototypeObject, v8::Isolate* isolate)
 {
     {% if is_partial %}
     {{v8_class}}::installConditionallyEnabledMethods(prototypeObject, isolate);
     {% endif %}
     {% if conditionally_enabled_methods %}
     {# Define per-context enabled operations #}
     v8::Local<v8::Signature> defaultSignature = v8::Signature::New(isolate, domTemplate(isolate));
     ExecutionContext* context = toExecutionContext(prototypeObject->CreationContext());
     ASSERT(context);
 
     {% for method in conditionally_enabled_methods %}
-    {% filter per_context_enabled(method.overloads.per_context_enabled_function_all
-                                  if method.overloads else
-                                  method.per_context_enabled_function) %}
     {% filter exposed(method.overloads.exposed_test_all
                       if method.overloads else
                       method.exposed_test) %}
     {% filter runtime_enabled(method.overloads.runtime_enabled_function_all
                               if method.overloads else
                               method.runtime_enabled_function) %}
     prototypeObject->Set(v8AtomicString(isolate, "{{method.name}}"), v8::FunctionTemplate::New(isolate, {{cpp_class_or_partial}}V8Internal::{{method.name}}MethodCallback, v8Undefined(), defaultSignature, {{method.number_of_required_arguments}})->GetFunction(isolate->GetCurrentContext()).ToLocalChecked());
     {% endfilter %}{# runtime_enabled() #}
     {% endfilter %}{# exposed() #}
-    {% endfilter %}{# per_context_enabled() #}
     {% endfor %}
     {% endif %}
 }
 {%- endmacro %}