Generate param traits size methods for IPC files in chrome/ (and traits it depends on).

extensions/common/permissions/api_permission.cc

Index: extensions/common/permissions/api_permission.cc
diff --git a/extensions/common/permissions/api_permission.cc b/extensions/common/permissions/api_permission.cc
index db84d8ae0f04f572418b81ca1c5b64b7c6b63bd5..148fc8eb6e1f18e3d8b5770324132912ce8fadc9 100644
--- a/extensions/common/permissions/api_permission.cc
+++ b/extensions/common/permissions/api_permission.cc
@@ -69,6 +69,8 @@ class SimpleAPIPermission : public APIPermission {
     return new SimpleAPIPermission(info());
   }
 
+  void GetSize(base::PickleSizer* s) const override {}
+
   void Write(base::Pickle* m) const override {}
 
   bool Read(const base::Pickle* m, base::PickleIterator* iter) override {