[CrOS Tether] Disconnect cleanly from active Tether networks when the user logs out or the Tether c…

chromeos/components/tether/fake_tether_host_fetcher.h

Index: chromeos/components/tether/fake_tether_host_fetcher.h
diff --git a/chromeos/components/tether/fake_tether_host_fetcher.h b/chromeos/components/tether/fake_tether_host_fetcher.h
index a75c9905bf09f9e3402819347f5b4eeb7b560330..7a6e93e1caf7fe81b9f0426206a992f75846fade 100644
--- a/chromeos/components/tether/fake_tether_host_fetcher.h
+++ b/chromeos/components/tether/fake_tether_host_fetcher.h
@@ -20,12 +20,17 @@ class FakeTetherHostFetcher : public TetherHostFetcher {
  public:
   FakeTetherHostFetcher(std::vector<cryptauth::RemoteDevice> tether_hosts,
                         bool synchronously_reply_with_results);
-  FakeTetherHostFetcher(bool synchronously_reply_with_results);
+  explicit FakeTetherHostFetcher(bool synchronously_reply_with_results);
   ~FakeTetherHostFetcher() override;
 
+  void set_synchronously_reply_with_results(
+      bool synchronously_reply_with_results) {
+    synchronously_reply_with_results_ = synchronously_reply_with_results;
+  }
+
   void SetTetherHosts(const std::vector<cryptauth::RemoteDevice> tether_hosts);
 
-  // If |sychronously_reply_with_results| is false, calling this method will
+  // If |synchronously_reply_with_results_| is false, calling this method will
   // actually invoke the callbacks.
   void InvokePendingCallbacks();