GitLab

The ax_dump_tree output puts out a lot of information, which can be too
noisy to efficiently read. This supports property filtering as follows:

ax_dump_tree --filters=[FILTERS_TEXT_FILE]

The filters file can have @ALLOW, @ALLOW-EMPTY and @DENY rules, similar
to the dump accessibility tree browsertests. It is not necessary to have
a platform prefix (e.g. @WIN- or @MAC-). The role of the object cannot
be filtered, but any other properties can. If no filters are provided
then all properties are shown.

Example, to filter out everything except role, name and value, use:
@ALLOW:name=*
@ALLOW:value=*

Put each filter on a separate line. For more info on writing rules, see
https://cs.chromium.org/chromium/src/content/test/data/accessibility/readme.md

Bug: 771747
Change-Id: If15a5c6f6baf6a1827749dae16825242a0913913
Reviewed-on: https://chromium-review.googlesource.com/725879
Commit-Queue: Aaron Leventhal <aleventhal@chromium.org>
Reviewed-by: Nektarios Paisios <nektar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#510171}