Definition of a web-exposed change to Chromium

Web-exposed is defined as affecting web API behavior to the point that website (i.e. web pages loaded via the HTTP or HTTPS scheme) developers using that API need to be aware of it.

Changes that are web-exposed:

• Any change that adds a new API, or in general modifies any IDL file to change what APIs developers see.
• Removal of some or all of an API.

Cases that are usually not web-exposed:

• Fixing a bug in the implementation to conform better with a defined specification.

Cases that might or might not be web-exposed:

• Fixing a broken implementation in a way that may break significant numbers of sites.