Worth a discussion about this, I think. If you have an app already launched that uses localstorage/websql, and want to switch to xwalk, how can you migrate your data?
What if you want to use system webview for API >= 21 and xwalk only for old phones? Then you need to move data in the reverse direction. Idea 1: - See if sqlite / localstorage databases are the same format, and provide code that migrates db locations Idea 2: - Use wizcorp's multi-window plugin to create a new an off-screen system webview, then use post-message to read data out of the old one. WDYT? Is this a problem we need to solve?
