commit b253a5c54917c2f7bd96f1acf2eeb7d3014a9288
author toyoshim <toyoshim@chromium.org> Tue Jul 05 09:03:11 2016
committer Commit bot <commit-bot@chromium.org> Tue Jul 05 09:05:01 2016
tree e5ef0ee0fd07f7f3063bcf003bacd1c59bd4d7da
parent d29bfa40cdeaeaab0d3571b9ead62a62d5351646

Web MIDI: prepare to deprecate MIDIMessageEvent::receivedTime

Now that Event::timeStamp is equivalent to DOMHighResTimeStamp,
WG decided to drop DOMHighResTimeStamp receivedTime attribute
from MIDIMessageEvent.

Our plan is to show a deprecate message on M54, then remove it
completely on M56.

This patch changes to show a deprecate message when JavaScript
touches the receivedTime attribute.

BUG=599335

Review-Url: https://codereview.chromium.org/2099213002
Cr-Commit-Position: refs/heads/master@{#403756}