Recent WebRTC stats spec changes have added restrictions on what stats are available to JavaScript. This is done to reduce that fingerprinting surface of WebRTC getStats. For example, stats exposing hardware capabilities have requirements that must be met by the browser. See [1] for more details. This CL adds the types and the enumerations. Stats with these restrictions should not be added until Chromium has implemented filtering based on the stat type. [1] https://w3c.github.io/webrtc-stats/#limiting-exposure-of-hardware-capabilities Bug: webrtc:14546 Change-Id: I6dae5d4921c7a2bc828a4fc8f7d68e0c59f3be82 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/279043 Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Reviewed-by: Henrik Boström <hbos@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38381}
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 “.hand.ccfiles come in pairs” rule, so if you declare something inapi/path/to/foo.h, it should be defined inapi/path/to/foo.cc. - Headers in
api/should, if possible, not#includeheaders outsideapi/. It’s not always possible to avoid this, but be aware that it adds to a small mountain of technical debt that we’re trying to shrink. .ccfiles inapi/, on the other hand, are free to#includeheaders outsideapi/.
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 won’t 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.