Enable the WebIDL [Exposed] annotation on an interface's members.

Source/bindings/scripts/v8_attributes.py

Index: Source/bindings/scripts/v8_attributes.py
diff --git a/Source/bindings/scripts/v8_attributes.py b/Source/bindings/scripts/v8_attributes.py
index 3f3b3f649d2389ced02c1b1a389dadd7adada875..16acccb04d94603e1a5c17e44ad72d457012793d 100644
--- a/Source/bindings/scripts/v8_attributes.py
+++ b/Source/bindings/scripts/v8_attributes.py
@@ -100,6 +100,7 @@ def attribute_context(interface, attribute):
         'cpp_name': cpp_name(attribute),
         'cpp_type': idl_type.cpp_type,
         'cpp_type_initializer': idl_type.cpp_type_initializer,
+        'custom_exposed_rules': v8_utilities.exposed(attribute, interface),  # [Exposed]

[haraken, 2014/07/30 16:32:03]

custom_exposed_rules => exposed_rules

[Jens Widell, 2014/07/30 16:48:45]

Or maybe 'exposed_tests'? Or maybe better yet, 'exposed_test', since this is in
fact a single string containing a C++ expression.

[Peter Beverloo, 2014/07/31 19:02:21]

I agree that |exposed_test| represents the contents most accurately. Changed.

         'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
         'enum_validation_expression': idl_type.enum_validation_expression,
         'has_custom_getter': has_custom_getter,