Update web-platform-tests and CSS tests.

- Update CSS tests to revision e05bfd5e30ed662c2f8a353577003f8eed230180.
- Update web-platform-tests to revision a052787dd5c069a340031011196b73affbd68cd9.

tests/wpt/css-tests/tools/pytest/doc/en/plugins.rst

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+.. _`external plugins`:
+.. _`extplugins`:
+.. _`using plugins`:
+
+Installing and Using plugins
+============================
+
+This section talks about installing and using third party plugins.
+For writing your own plugins, please refer to :ref:`writing-plugins`.
+
+Installing a third party plugin can be easily done with ``pip``::
+
+    pip install pytest-NAME
+    pip uninstall pytest-NAME
+
+If a plugin is installed, ``pytest`` automatically finds and integrates it,
+there is no need to activate it.
+
+Here is a little annotated list for some popular plugins:
+
+.. _`django`: https://www.djangoproject.com/
+
+* `pytest-django <http://pypi.python.org/pypi/pytest-django>`_: write tests
+  for `django`_ apps, using pytest integration.
+
+* `pytest-twisted <http://pypi.python.org/pypi/pytest-twisted>`_: write tests
+  for `twisted <http://twistedmatrix.com>`_ apps, starting a reactor and
+  processing deferreds from test functions.
+
+* `pytest-catchlog <http://pypi.python.org/pypi/pytest-catchlog>`_:
+  to capture and assert about messages from the logging module
+
+* `pytest-cov <http://pypi.python.org/pypi/pytest-cov>`_:
+  coverage reporting, compatible with distributed testing
+
+* `pytest-xdist <http://pypi.python.org/pypi/pytest-xdist>`_:
+  to distribute tests to CPUs and remote hosts, to run in boxed
+  mode which allows to survive segmentation faults, to run in
+  looponfailing mode, automatically re-running failing tests
+  on file changes, see also :ref:`xdist`
+
+* `pytest-instafail <http://pypi.python.org/pypi/pytest-instafail>`_:
+  to report failures while the test run is happening.
+
+* `pytest-bdd <http://pypi.python.org/pypi/pytest-bdd>`_ and
+  `pytest-konira <http://pypi.python.org/pypi/pytest-konira>`_
+  to write tests using behaviour-driven testing.
+
+* `pytest-timeout <http://pypi.python.org/pypi/pytest-timeout>`_:
+  to timeout tests based on function marks or global definitions.
+
+* `pytest-pep8 <http://pypi.python.org/pypi/pytest-pep8>`_:
+  a ``--pep8`` option to enable PEP8 compliance checking.
+
+* `pytest-flakes <https://pypi.python.org/pypi/pytest-flakes>`_:
+  check source code with pyflakes.
+
+* `oejskit <http://pypi.python.org/pypi/oejskit>`_:
+  a plugin to run javascript unittests in live browsers.
+
+To see a complete list of all plugins with their latest testing
+status against different py.test and Python versions, please visit
+`plugincompat <http://plugincompat.herokuapp.com/>`_.
+
+You may also discover more plugins through a `pytest- pypi.python.org search`_.
+
+.. _`available installable plugins`:
+.. _`pytest- pypi.python.org search`: http://pypi.python.org/pypi?%3Aaction=search&term=pytest-&submit=search
+
+
+Requiring/Loading plugins in a test module or conftest file
+-----------------------------------------------------------
+
+You can require plugins in a test module or a conftest file like this::
+
+    pytest_plugins = "myapp.testsupport.myplugin",
+
+When the test module or conftest plugin is loaded the specified plugins
+will be loaded as well.
+
+    pytest_plugins = "myapp.testsupport.myplugin"
+
+which will import the specified module as a ``pytest`` plugin.
+
+.. _`findpluginname`:
+
+Finding out which plugins are active
+------------------------------------
+
+If you want to find out which plugins are active in your
+environment you can type::
+
+    py.test --traceconfig
+
+and will get an extended test header which shows activated plugins
+and their names. It will also print local plugins aka
+:ref:`conftest.py <conftest>` files when they are loaded.
+
+.. _`cmdunregister`:
+
+Deactivating / unregistering a plugin by name
+---------------------------------------------
+
+You can prevent plugins from loading or unregister them::
+
+    py.test -p no:NAME
+
+This means that any subsequent try to activate/load the named
+plugin will not work.
+
+If you want to unconditionally disable a plugin for a project, you can add
+this option to your ``pytest.ini`` file:
+
+.. code-block:: ini
+
+      [pytest]
+      addopts = -p no:NAME
+
+Alternatively to disable it only in certain environments (for example in a
+CI server), you can set ``PYTEST_ADDOPTS`` environment variable to
+``-p no:name``.
+
+See :ref:`findpluginname` for how to obtain the name of a plugin.
+
+.. _`builtin plugins`:
+
+Pytest default plugin reference
+-------------------------------
+
+
+You can find the source code for the following plugins
+in the `pytest repository <https://github.com/pytest-dev/pytest>`_.
+
+.. autosummary::
+
+    _pytest.assertion
+    _pytest.cacheprovider
+    _pytest.capture
+    _pytest.config
+    _pytest.doctest
+    _pytest.genscript
+    _pytest.helpconfig
+    _pytest.junitxml
+    _pytest.mark
+    _pytest.monkeypatch
+    _pytest.nose
+    _pytest.pastebin
+    _pytest.pdb
+    _pytest.pytester
+    _pytest.python
+    _pytest.recwarn
+    _pytest.resultlog
+    _pytest.runner
+    _pytest.main
+    _pytest.skipping
+    _pytest.terminal
+    _pytest.tmpdir
+    _pytest.unittest
+