Sameer Vijaykar 6326c9c201 Add an active ICE controller that wraps a legacy controller (#7/n)
The wrapping ICE controller will allow existing ICE controller implementations to migrate to the active interface, and eventually deprecate the legacy interface.

Follow-up CL has unit tests for P2PTransportChannel using the new wrapping controller.

Bug: webrtc:14367, webrtc:14131
Change-Id: I6c517449ff1e503e8268a7ef91afda793723fdeb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275302
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Jonas Oreland <jonaso@webrtc.org>
Commit-Queue: Sameer Vijaykar <samvi@google.com>
Cr-Commit-Position: refs/heads/main@{#38130}
2022-09-20 13:52:24 +00:00
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How to write code in the api/ directory

Mostly, just follow the regular style guide, but:

  • Note that api/ code is not exempt from the “.h and .cc files come in pairs” rule, so if you declare something in api/path/to/foo.h, it should be defined in api/path/to/foo.cc.
  • Headers in api/ should, if possible, not #include headers outside api/. Its not always possible to avoid this, but be aware that it adds to a small mountain of technical debt that were trying to shrink.
  • .cc files in api/, on the other hand, are free to #include headers outside api/.

That is, the preferred way for api/ code to access non-api/ code is to call it from a .cc file, so that users of our API headers wont transitively #include non-public headers.

For headers in api/ that need to refer to non-public types, forward declarations are often a lesser evil than including non-public header files. The usual rules still apply, though.

.cc files in api/ should preferably be kept reasonably small. If a substantial implementation is needed, consider putting it with our non-public code, and just call it from the api/ .cc file.