IDL compiler: [PerContextEnabled] for getters

Source/bindings/scripts/unstable/v8_attributes.py

Index: Source/bindings/scripts/unstable/v8_attributes.py
diff --git a/Source/bindings/scripts/unstable/v8_attributes.py b/Source/bindings/scripts/unstable/v8_attributes.py
index 8cccbff1ce8e6cea07428a13ab2a4ff8797ed3d7..0630f4f734ff904f5718ffc18aa62444a8de9bae 100644
--- a/Source/bindings/scripts/unstable/v8_attributes.py
+++ b/Source/bindings/scripts/unstable/v8_attributes.py
@@ -49,6 +49,7 @@ def generate_attributes(interface):
     includes = set()
     contents = generate_attributes_common(interface)
     contents['attributes'] = [generate_attribute(attribute) for attribute in interface.attributes]
+    contents['has_per_context_enabled_attributes'] = any(attribute['per_context_enabled_function_name'] for attribute in contents['attributes'])
     contents['has_runtime_enabled_attributes'] = any(attribute['runtime_enabled_function_name'] for attribute in contents['attributes'])
     return contents, includes
 
@@ -72,7 +73,8 @@ def generate_attribute_and_includes(interface, attribute):
         'cached_attribute_validation_method': extended_attributes.get('CachedAttribute'),
         'conditional_string': v8_utilities.generate_conditional_string(attribute),
         'cpp_type': v8_types.cpp_type(idl_type),
-        'runtime_enabled_function_name': v8_utilities.runtime_enabled_function_name(attribute),  # EnabledAtRuntime
+        'per_context_enabled_function_name': v8_utilities.per_context_enabled_function_name(attribute),  # [PerContextEnabled]
+        'runtime_enabled_function_name': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
         'idl_type': idl_type,
         'is_keep_alive_for_gc': this_is_keep_alive_for_gc,
         'is_nullable': attribute.is_nullable,