Bug 1295053 removed most uses of NS_METHOD and NS_CALLBACK, but one use was
unintentionally left behind (in the XPIDL parser) and another has since crept
in (in MediaDrmCDMProxy.h).
So this patch removes NS_METHOD and NS_CALLBACK. NS_METHOD_(nsresult) and
NS_CALLBACK_(nsresult, T) can still be used for the same purpose, but those
alternatives are less likely to be used unintentionally.
For XPIDL methods, this causes MOZ_MUST_USE to be prepended to the generated
C++ function declaration.
For XPIDL attributes, this causes MOZ_MUST_USE to be prepended to the generated
C++ getter declaration and (if present) setter declaration.
We only ever execute this in one place, so we can just have the main
action do the --regen --cachedir=. mode of operation.
MozReview-Commit-ID: Fis4YBPFjMl
This allows us to have a shared superclass that implements the guts of a shared
superinterface, without having the superclass actually inherit the superinterface
(which leads to annoying and unnecessary diamond-inheritance).
Move Python code into an xpidl subdirectory, and include a setup.py to allow
inclusion from pip install or requirements files. Change build directory
variables appropriately.
