GitLab

Revert of Migrate IME state update flow (patchset #4 id:100001 of https://codereview.chromium.org/2777223004/ )

Reason for revert:
This patchset caused a regression crbug.com/709349: 'cut' option disappeared from webview selection pop up.

Original issue's description:
> Migrate IME state update flow
>
> Refactored the flow for IME state update so it bypasses CVCImpl
> and go straight from RWHVA -> ImeAdapter native -> Java layer.
>
> Other related changes are:
>
> ImeAdapter provides EventObserver to reduce the dependency on CVC,
> based on the suggestion made in https://goo.gl/pdtQCl. It is used
> by an embedder (Chrome) and CVC to deal with IME notification.
> This replaces IME state update done through CVC. Only the necessary
> info (node editability, password attribute) are passed.
>
> ImeAdapter.ImeAdapterDelegate is to delegate some work upon IME
> events. But it is used by ContentViewCore only, and there is no
> clear benefit of having the interface. It was removed for
> simplification. All the stuff can be (and are now) handled inside
> ImeAdapter.
>
> BUG=662908,626765,620172
>
> Review-Url: https://codereview.chromium.org/2777223004
> Cr-Commit-Position: refs/heads/master@{#462419}
> Committed: https://chromium.googlesource.com/chromium/src/+/cc9e77e7d9e05da0f6017f1bdea024f0ce669786

TBR=boliu@chromium.org,tedchoc@chromium.org,jinsukkim@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=662908,626765,620172

Review-Url: https://codereview.chromium.org/2803203003
Cr-Commit-Position: refs/heads/master@{#463053}