Change Cronet's "disable_ipv6" to "disable_ipv6_on_wifi"
The new option is implemented in HostResolverImpl as an assumption that
IPv6 is unreachable when the current connection is wifi. In order to
make this testable, the tests that used to override IsIPv6Reachable()
now override IsGloballyReachable().
BUG=696569
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester
Review-Url: https://codereview.chromium.org/2811183003
Cr-Commit-Position: refs/heads/master@{#464522}
17 files changed