root/chrome/browser/extensions/api/declarative_webrequest/

1. request_stage.cc
2. request_stage.h
3. webrequest_action.cc
4. webrequest_action.h
5. webrequest_action_unittest.cc
6. webrequest_condition.cc
7. webrequest_condition.h
8. webrequest_condition_attribute.cc
9. webrequest_condition_attribute.h
10. webrequest_condition_attribute_unittest.cc
11. webrequest_condition_unittest.cc
12. webrequest_constants.cc
13. webrequest_constants.h
14. webrequest_rules_registry.cc
15. webrequest_rules_registry.h
16. webrequest_rules_registry_unittest.cc