commit 03c1f4449fec6a5fe7406647023b0c8b6531444a
author rbpotter <rbpotter@chromium.org> Wed Jun 14 20:32:30 2017
committer Commit Bot <commit-bot@chromium.org> Wed Jun 14 20:32:30 2017
tree 7615e89444407c84ea55e1890317c2eacaf5f078
parent 2e986179979a89c8a2bdf55d139cd56baacd8573

Print Preview: Change get*PrinterCapabilities to cr.sendWithPromise

Change all the get*PrinterCapabilities functions
(getPrinterCapabilities, getPrivetPrinterCapabilities,
getExtensionCapabilities) to cr.sendWithPromise. All share the same
function for failure (onGetCapabilitiesFail).

Change tests to work with the new system.

BUG=717296
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2931843003
Cr-Commit-Position: refs/heads/master@{#479489}