- Had to chnage the core API to add a destroy function pointer in
grpc_auth_metadata_processor.
- Tested end to end.
- Fixed some issues in the server_auth_filter (we were not checking the
length which put us at risk of an overflow).
- Removing service_accounts credentials. These credentials just have
drawbacks compared to service_account_jwt_access credentials, notably
in terms for security.
- Renaming Google specific credentials with a Google prefix for C and
C++. This should be done as well for wrapped languages.
- We always do the processing asynchronously but maintain a synchronous
API for the implementor of the processor.
- there are a lot of string copies right now. Having a StringPiece
object in grpc++ would really help with that (as we would use it for
C++ metadata).
- Please review the API carefully and if you're happy with it, I'll
proceed with tests.
Resulted in error:
```test/cpp/end2end/end2end_test.cc:120: error: ‘<::’ cannot begin a template-argument list
test/cpp/end2end/end2end_test.cc:120: note: ‘<:’ is an alternate spelling for ‘[’. Insert whitespace between ‘<’ and ‘::’
test/cpp/end2end/end2end_test.cc:120: note: (if you use ‘-fpermissive’ G++ will accept your code)
make: *** [objs/opt/test/cpp/end2end/end2end_test.o] Error 1```