Closes #404

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1782173002 .

Closes #401

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1756523003 .

R=abarth@google.com, kevmoo@google.com

Review URL: https://codereview.chromium.org//1731503002 .

I forgot to do this when first adding the feature.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1754503002 .

These allow configuration based on the user's OS and the platform the
test is running on.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1730173004 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1740053002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1732773003 .

R=abarth@google.com, kevmoo@google.com

Review URL: https://codereview.chromium.org//1731503002 .

This means we don't have to explicitly tag those tests as Windows- of
Mac OS-only.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1740433002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1731483002 .

If the config file contains a top-level test_on field, the runner will
now warn if the runner is invoked with an unsupported platform.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1715523003 .

These fields are only really useful when applied to particular tags,
which we can now do.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1717533002 .

The --tags and --exclude-tags flags now support boolean selector syntax,
as do the keys in the "tags" configuration field.

Closes #16

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1715583003 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1717483002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1707173002 .

See #16

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1709633003 .

R=nweiz@google.com

Review URL: https://codereview.chromium.org//1704183002 .

Also, we now determine whether the user is debugging a given browser in
BrowserManager rather than individual suites.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1704773002 .

See #16

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1691173002 .

We don't always emit relative paths, so we shouldn't say we do.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1690053004 .

This is basically the minimum Flutter needs to stop doing manual
serialization stuff. This also migrates the VM loader to use the plugin
infrastructure.

In a follow-up commit, I plan to migrate the browser loader as well.
That will likely require some additional modifications to the plugin API
to support the more complex use-case.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1685363002 .

Closes #396

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//1684063004 .

This will ensure that the latest version of test that claims to support
args 0.12.0 will actually run correctly with that version. After this is
released, I'll re-add the separators and fix the args constraint.

See #396

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//1683923005 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1673493002 .

This adds two fields: "paths" allows users to specify the paths that are
used if nothing is passed on the command line, and "filename" allows
users to declare which individual files should be loaded.

I'm closing out the package-level config file issue because this is the
last non-plugin feature mentioned in it. There's still a lot more work
to do, but that's tracked in separate issues.

Closes #46

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1668573003 .

scheduled_test doesn't play nicely with multiple setUp calls.

Closes #392

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1662783004 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1667663005 .

This just loads a subset of the config that can be pased on the command line
from the configuration file. The command line takes precedence over the config.

See #46

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1649663003 .

This adds a table of contents to the README, and moves the JSON reporter
docs into a doc/ directory. Further in-depth documentation of specific
pieces of the runner will go in doc/ as well.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1661873002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1660093002 .

This also updates test to use the new version of shelf_web_socket.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1664433002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1659023003 .

R=nweiz@google.com

Review URL: https://codereview.chromium.org//1656093002 .

I think this was broken at some point during the setUpAll and
tearDownAll changes.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1657613003 .

Our infrastructure changed such that synchronous or microtask-only test
bodies run before the timeout fires, so we need to have those tests wait
for a timer event.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1654183003 .