Implement bugward quirk for setInitalScale and viewport meta tag.

The Classic WebView has a bug where for certain viewport meta tag
values it will ignore the application specified setInitialScale value.
Implement this bug for legacy apps in the new WebView. Apps targeting
>= K will have the expected behavior where a call to setInitialScale
will always override the viewport meta tag.

Bug: 10935045
Change-Id: Ia44b309fa2cbcf521728e00c2de5c48810038d1b
1 file changed