Add [CachedAccessor] attribute to cache (almost) constant accessors (window.document).

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

Index: third_party/WebKit/Source/bindings/templates/interface_base.cpp
diff --git a/third_party/WebKit/Source/bindings/templates/interface_base.cpp b/third_party/WebKit/Source/bindings/templates/interface_base.cpp
index 8db5c296f763822485e2178e83a1d55402d53692..23383d9d3e6063e67defcb2b88a5ba03d2587452 100644
--- a/third_party/WebKit/Source/bindings/templates/interface_base.cpp
+++ b/third_party/WebKit/Source/bindings/templates/interface_base.cpp
@@ -96,6 +96,7 @@ static void (*{{method.name}}MethodForPartialInterface)(const v8::FunctionCallba
        attribute_getter, attribute_getter_callback,
        attribute_setter, attribute_setter_callback,
        attribute_getter_builder_callback,
+       attribute_surrogate_property_callback,
        attribute_getter_implemented_in_private_script,
        attribute_setter_implemented_in_private_script
        with context %}
@@ -103,6 +104,9 @@ static void (*{{method.name}}MethodForPartialInterface)(const v8::FunctionCallba
 {% if attribute.has_fast_accessor %}
 {{attribute_getter_builder_callback(attribute)}}
 {% endif %}
+{% if attribute.is_store_in_field %}
+{{attribute_surrogate_property_callback(attribute)}}
+{% endif %}
 {% for world_suffix in attribute.world_suffixes %}
 {% if not attribute.has_custom_getter and not attribute.constructor_type %}
 {{attribute_getter(attribute, world_suffix)}}