No longer need to pass storage paths to WebView.cleanupPrivateBrowsingFiles()

Requires the following changes to external/webkit and frameworks/base
https://android-git.corp.google.com/g/81781
https://android-git.corp.google.com/g/81782

Bug: 3232569
Change-Id: Ib6c661035ac39726d94b2c9f7e54cdf887a6ba0a
1 file changed