GitLab

> [DomKey] Expose Korean special keys on Korean keyboard layout only
>
> Korean keyboard has special keys "HangulMode" and "HanjaMode", we should
> only expose them when the system layout is Korean. Otherwise we should
> return "Unidentified".
>
> This matches Firefox and windows virtual key.
>
> Note: This also works with JIS keyboard + Korean layout, because we are
> mapping DomKey based on KeyboardCode instead of DomCode.
>
> BUG=612736
>
> Committed: https://crrev.com/bdcfb5a1816f1bad537d7611c7ccb972b550339c
> Cr-Commit-Position: refs/heads/master@{#399783}
> Revert: https://codereview.chromium.org/2061123005

Original issue:
Windows API |LoadKeyboardLayout()| won't pass DrMemory
tests for Korean and Japanese locale.
This should be an issue of DrMemory test or Windows itself.
See https://crbug.com/612736#c11

Solution:
Just skip |LoadKeyboardLayout()| and hardcode locale for Korean,
it works because we are only testing non-printable keys, which
doesn't care about |ToUnicodeEx()|.

Note:
|ToUnicodeEx()| returns empty string if the specified locale is invalid. (e.g. Korean HKL without calling 'LoadKeyboardLayout()')

Also Note:
"mock_keyboard.h" has the similar issue, e.g.
Call "MockKeyboard::GetCharacters(MockKeyboard::LAYOUT_KOREAN, ..)" somewhere and run DrMemory full test, which will fail as well.

BUG=612736

Review-Url: https://codereview.chromium.org/2097643002
Cr-Commit-Position: refs/heads/master@{#402611}