Fork Stylo's malloc_size_of into Servo (#34332)

This is unfortuante, but it's the only way to stop making Stylo's
`malloc_size_of` depend on so many of Servo's dependencies. This is an
important step on the way toward releasing Stylo as standalone software.
When possible, we defer to the implementation of `MallocSizeOf` that is
in the base class.

One benefit of this change is that we start properly measure the size of
WebRender types, which before were always set to zero.

In addition the `Measurable` class is removed in favor of simply
manually implementing `MallocSizeOf`, which doesn't require
uncomfortably modifying the shape of data structures.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2024-11-22 15:57:55 +01:00 committed by GitHub
parent 3a32af0c85
commit a3c2471344
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
9 changed files with 1138 additions and 133 deletions

View file

@ -0,0 +1,23 @@
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.