commit d03c23b216b6f1ff1b9c9e4fae75151607813f40
author Henrik Boström <hbos@webrtc.org> Wed Jun 01 09:44:18 2016
committer Henrik Boström <hbos@webrtc.org> Wed Jun 01 09:44:29 2016
tree 63f594a9c2d9798d63886eac65ddee7fbd1b00d2
parent 164e978f981c7810c4260c4184f41e26bae90230

Replacing DtlsIdentityStoreInterface with RTCCertificateGeneratorInterface.

The store was used in WebRtcSessionDescriptionFactory to generate certificates,
now a generator is used instead (new API). PeerConnection[Factory][Interface],
and WebRtcSession are updated to pass generators all the way down to the
WebRtcSessionDescriptionFactory instead of stores.

The webrtc implementation of a generator, RTCCertificateGenerator, is used as
the default generator (peerconnectionfactory.cc:189) instead of the webrtc
implementation of a store, DtlsIdentityStoreImpl.
  The generator is fully parameterized and does not generate RSA-1024 unless you
ask for it (which makes sense not to do beforehand since ECDSA is now default).
The store was not fully parameterized (known filed bug).

The "top" layer, PeerConnectionFactoryInterface::CreatePeerConneciton, is
updated to take a generator instead of a store.
  Many unittests still use a store, to allow them to continue to do so the
factory gets CreatePeerConnectionWithStore which uses the old function
signature (and invokes the new signature by wrapping the store in an
RTCCertificateGeneratorStoreWrapper). As soon as the FakeDtlsIdentityStore is
turned into a certificate generator instead of a store, the unittests will be
updated and we can remove CreatePeerConnectionWithStore.

This is a reupload of https://codereview.webrtc.org/2013523002/ with minor
changes.

BUG=webrtc:5707, webrtc:5708
R=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/2017943002 .

Cr-Commit-Position: refs/heads/master@{#12984}