Support proper propagation of enabled per context and at runtime attributes.

lib/dom/scripts/databasebuilder.py

Index: lib/dom/scripts/databasebuilder.py
diff --git a/lib/dom/scripts/databasebuilder.py b/lib/dom/scripts/databasebuilder.py
index d5e799688c2d49f0ba275a9dd77c9f0e3cd84fef..f5c20513e4430a1499e10b9348426ef7275dd983 100755
--- a/lib/dom/scripts/databasebuilder.py
+++ b/lib/dom/scripts/databasebuilder.py
@@ -561,3 +561,25 @@ class DatabaseBuilder(object):
         map(normalize, interface.constants)
         map(normalize, interface.attributes)
         map(normalize, interface.operations)
+
+  def fetch_constructor_data(self, options):

[podivilov, 2012/06/25 14:06:42]

Could you please move this logic to generation phase? Ideally, we should avoid
tweaking idls at databasebuilder level at all.

+    window_interface = self._database.GetInterface('Window')
+    for attr in window_interface.attributes:
+      if not attr.is_fc_getter:
+        continue
+      type = attr.type.id
+      if not type.endswith('Constructor'):
+        continue
+      type = type[:-len('Constructor')]
+      # TODO: typos in WebKit IDL: HTMLImageElementConstructorConstructor...
+      if type in [
+          'HTMLAudioElementConstructor',
+          'HTMLImageElementConstructor',
+          'HTMLOptionElementConstructor' ]:
+        type = type[:-len('Constructor')]
+
+      interface = self._database.GetInterface(options.type_rename_map.get(type, type))
+      if 'V8EnabledPerContext' in attr.ext_attrs:
+        interface.ext_attrs['V8EnabledPerContext'] = attr.ext_attrs['V8EnabledPerContext']
+      if 'V8EnabledAtRuntime' in attr.ext_attrs:
+        interface.ext_attrs['V8EnabledAtRuntime'] = attr.ext_attrs['V8EnabledAtRuntime']