Tomas Gunnarsson 82c94af48f Revert "Make MockPeerConnectionInterface not inherit from RefCountedObject"
This reverts commit d67903d284353dffcf28dfb92819e3d7c4b69bfd.

Reason for revert: A downstream issue needs to be fixed.

Original change's description:
> Make MockPeerConnectionInterface not inherit from RefCountedObject
>
> Bug: webrtc:12701
> Change-Id: I51fb7caf12b97d70f35af12703104112f9fdfaff
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256107
> Auto-Submit: Tomas Gunnarsson <tommi@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#36267}

Bug: webrtc:12701
Change-Id: I25e2d6004d257dd0b1d17fb1f7726d04d29e6eed
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256109
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36271}
2022-03-20 18:48:02 +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.