GitLab

Native keycode is used in system keyboard lock feature to understand the input
requested keys from Javascript API.

Also for consistency, CodeToUsbKeycode() has been renamed to
CodeStringToUsbKeycode().

You will find the usage of the newly added function in,
https://codereview.chromium.org/2879033002/diff/510001/components/keyboard_lock/keyboard_lock_host.cc
function KeyboardLockHost::SetReservedKeyCodes().

For detail, please refer to the design doc at,
https://docs.google.com/document/d/1T9gJHYdA1VGZ6QHQeOu0hOacWWWJ7yNEt1VDbLju4bs/edit#heading=h.cgwemqs2j4ta

W3C Working Draft: https://garykac.github.io/system-keyboard-lock/
Intent to implement: https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/9pauQUAvrcw/lfbG7eunCAAJ

A prototype can be found at,
https://codereview.chromium.org/2879033002

BUG=680809

Review-Url: https://codereview.chromium.org/2910873002
Cr-Commit-Position: refs/heads/master@{#476544}