Cherry-pick r291100 "Amend 289844 "Simplify android_webview wrap_contents mode."

> Amend 289844 "Simplify android_webview wrap_contents mode."
>
> When merging r288992 I accidentally omitted the one line from
> web_preferences due to a conflicting rename of that file in trunk.
> This CL fixes the mistake.
>
> BUG=392460
> TBR=mkosiba@chromium.org
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=291100

BUG: 15281050
1 file changed