Revert of [Clank IME] Make keyCode detection sensitive to autocomplete=on|off.
Reason for revert:
Probably the cause of a bug where characters are not properly deleted when
using a Samsung keyboard.
Original issue's description:
> [Clank IME] Make keyCode detection sensitive to autocomplete=on|off.
>
> Fixing Stable blocker for Clank IME.
>
> The old keyCode detection heuristics would emit KEYCODE_DEL when the last
> character of composition is deleted by backspace. This causes the bug where
> the composition gets reset (Japanese keyboard). We fix the the problem by
> emitting keyCode 229 when composition is updated, if autocomplete=on. If
> autocomplete=off then we can can emit the keyCode, provided that we have
> single-character commits. Due to unfortunate collision with
> https://codereview.chromium.org/834133004 , we have to to define constant
> textInputFlagAutocompleteOff for compatibility with trunk and Beta.
>
> The companion WebKit CL is https://codereview.chromium.org/797243003/
>
> BUG=422685
> Committed: https://crrev.com/1a8a145d5ea8289f1e527c3de95f233e4a659cde
> Cr-Commit-Position: refs/heads/master@{#311245}
Bug: 19363073
Change-Id: I25a945f797ffdb5959fd277ad8f86f149d79f8c1
2 files changed
