Use Skia implementation of FontCustomPlatformData for non-GDI Windows

Change windows build to use FontCustomPlatformDataSkia instead of
FontCustomPlatformDataWin for the non-GDI configuration.

BUG=251355
R=reed@chromium.org

Review URL: https://codereview.chromium.org/25903004

git-svn-id: svn://svn.chromium.org/blink/trunk@158943 bbb929c8-8fbe-4397-9dbb-9b2b20218538