https://bugs.webkit.org/show_bug.cgi?id=96382

Reviewed by Adam Barth.

Remove the exceptions made for layout tests in Android's scrollbar theme.
This will make our actual scrollbars show up in layout test pixel results,
bringing the tests closer to what we actually ship.

An important difference with other platforms is that scrollbars do not
take any width on Android, they're rendered on top of the content. Therefore
each test that has a visible scrollbar does not just need a new pixel
result, but will also need a new text result. This will be handled as part
of a larger rebaselining process.

Will be exercised by every layout test that has a scrollbar.

* platform/chromium/ScrollbarThemeChromiumAndroid.cpp:
(WebCore::ScrollbarThemeChromiumAndroid::scrollbarThickness):
(WebCore::ScrollbarThemeChromiumAndroid::usesOverlayScrollbars):
(WebCore::ScrollbarThemeChromiumAndroid::hasThumb):
* platform/chromium/ScrollbarThemeChromiumAndroid.h:
(ScrollbarThemeChromiumAndroid):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@129394 268f45cc-cd09-0410-ab3c-d52691b4dbfc