Patch GeckoView's ConnectivityManager usage
GeckoView uses the connectivity manager for detecting the currently used type of network connection (WIFI, 2G, 3G, 4G, etc). I didn't dig into the code, but it looks like some gecko behavior changes depending on the link type. Along with removing the WIFI_STATE
Android permission, we should make sure this isn't leaking any info into content, and we should probably just always return LINK_TYPE_UNKNOWN
.