Lazily install origin trial features on V8 objects

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

Index: third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl
diff --git a/third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl b/third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl
index a12395f8db880b259bb4490915321789bb407aff..9bf2a24112c46b7c710ddba25cc199fa8500eb8a 100644
--- a/third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl
+++ b/third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl
@@ -396,43 +396,48 @@ static void install{{v8_class}}Template(v8::Isolate* isolate, const DOMWrapperWo
 {% from 'constants.cpp.tmpl' import constant_configuration with context %}
 {% from 'methods.cpp.tmpl' import method_configuration with context %}
 {% for origin_trial_feature in origin_trial_features %}{{newline}}
-void {{v8_class_or_partial}}::install{{origin_trial_feature.name}}(ScriptState* scriptState, v8::Local<v8::Object> instance)
+void {{v8_class_or_partial}}::install{{origin_trial_feature.name}}(v8::Isolate* isolate, const DOMWrapperWorld& world, v8::Local<v8::Object> instance, v8::Local<v8::Object> prototype, v8::Local<v8::Function> interface)
 {
     {% if attributes | for_origin_trial_feature(origin_trial_feature.name) or
           methods | method_for_origin_trial_feature(origin_trial_feature.name, is_partial) %}
-    v8::Local<v8::FunctionTemplate> interfaceTemplate = {{v8_class}}::wrapperTypeInfo.domTemplate(scriptState->isolate(), scriptState->world());
-    v8::Local<v8::Signature> signature = v8::Signature::New(scriptState->isolate(), interfaceTemplate);
+    v8::Local<v8::FunctionTemplate> interfaceTemplate = {{v8_class}}::wrapperTypeInfo.domTemplate(isolate, world);
+    v8::Local<v8::Signature> signature = v8::Signature::New(isolate, interfaceTemplate);
     ALLOW_UNUSED_LOCAL(signature);
     {% endif %}
-    V8PerContextData* perContextData = V8PerContextData::from(scriptState->context());
-    v8::Local<v8::Object> prototype = perContextData->prototypeForType(&{{v8_class}}::wrapperTypeInfo);
-    v8::Local<v8::Function> interface = perContextData->constructorForType(&{{v8_class}}::wrapperTypeInfo);
-    ALLOW_UNUSED_LOCAL(interface);
     {# Origin-Trial-enabled attributes #}
     {% for attribute in attributes | for_origin_trial_feature(origin_trial_feature.name) | unique_by('name') | sort %}
     {% if attribute.is_data_type_property %}
     const V8DOMConfiguration::AttributeConfiguration attribute{{attribute.name}}Configuration = \
         {{attribute_configuration(attribute)}};
-    V8DOMConfiguration::installAttribute(scriptState->isolate(), scriptState->world(), instance, prototype, attribute{{attribute.name}}Configuration);
+    V8DOMConfiguration::installAttribute(isolate, world, instance, prototype, attribute{{attribute.name}}Configuration);
     {% else %}
     const V8DOMConfiguration::AccessorConfiguration accessor{{attribute.name}}Configuration = \
         {{attribute_configuration(attribute)}};
-    V8DOMConfiguration::installAccessor(scriptState->isolate(), scriptState->world(), instance, prototype, interface, signature, accessor{{attribute.name}}Configuration);
+    V8DOMConfiguration::installAccessor(isolate, world, instance, prototype, interface, signature, accessor{{attribute.name}}Configuration);
     {% endif %}
     {% endfor %}
     {# Origin-Trial-enabled constants #}
     {% for constant in constants | for_origin_trial_feature(origin_trial_feature.name) | unique_by('name') | sort %}
     {% set constant_name = constant.name.title().replace('_', '') %}
     const V8DOMConfiguration::ConstantConfiguration constant{{constant_name}}Configuration = {{constant_configuration(constant)}};
-    V8DOMConfiguration::installConstant(scriptState->isolate(), interface, prototype, constant{{constant_name}}Configuration);
+    V8DOMConfiguration::installConstant(isolate, interface, prototype, constant{{constant_name}}Configuration);
     {% endfor %}
     {# Origin-Trial-enabled methods (no overloads) #}
     {% for method in methods | method_for_origin_trial_feature(origin_trial_feature.name, is_partial) | unique_by('name') | sort %}
     {% set method_name = method.name.title().replace('_', '') %}
     const V8DOMConfiguration::MethodConfiguration method{{method_name}}Configuration = {{method_configuration(method)}};
-    V8DOMConfiguration::installMethod(scriptState->isolate(), scriptState->world(), instance, prototype, interface, signature, method{{method_name}}Configuration);
+    V8DOMConfiguration::installMethod(isolate, world, instance, prototype, interface, signature, method{{method_name}}Configuration);
     {% endfor %}
 }
+
+void {{v8_class_or_partial}}::install{{origin_trial_feature.name}}(ScriptState* scriptState, v8::Local<v8::Object> instance)
+{
+    V8PerContextData* perContextData = V8PerContextData::from(scriptState->context());
+    v8::Local<v8::Object> prototype = perContextData->prototypeForType(&{{v8_class}}::wrapperTypeInfo);
+    v8::Local<v8::Function> interface = perContextData->constructorForType(&{{v8_class}}::wrapperTypeInfo);
+    ALLOW_UNUSED_LOCAL(interface);
+    install{{origin_trial_feature.name}}(scriptState->isolate(), scriptState->world(), instance, prototype, interface);
+}
 {% if not origin_trial_feature.needs_instance %}
 
 void {{v8_class_or_partial}}::install{{origin_trial_feature.name}}(ScriptState* scriptState)