kUnknown           28 chrome/browser/extensions/default_apps.h   kUnknown,
kUnknown           27 chrome/test/chromedriver/chrome/navigation_tracker.h     kUnknown,
kUnknown           35 extensions/common/permissions/api_permission.h     kUnknown = -1,
kUnknown           25 extensions/common/permissions/permission_message.h     kUnknown,
kUnknown           42 gpu/command_buffer/common/constants.h     kUnknown,
kUnknown          118 gpu/config/gpu_control_list.h     kUnknown  // Indicates the data is invalid.
kUnknown          211 gpu/config/gpu_control_list.h       kUnknown  // Indicates StringInfo data is invalid.
kUnknown           23 media/cast/logging/logging_defines.h   kUnknown,
kUnknown           26 tools/clang/blink_gc_plugin/NeedsTracing.h   enum Value { kUnneeded, kUnknown, kNeeded };
kUnknown           24 tools/clang/blink_gc_plugin/TracingStatus.h   enum Status { kUnneeded, kUnknown, kNeeded };
kUnknown           33 webkit/browser/quota/quota_client.h     kUnknown = 1 << 0,