[telemetry] Wire TsProxy through telemetry's network stack.

telemetry/telemetry/core/network_controller.py

Index: telemetry/telemetry/core/network_controller.py
diff --git a/telemetry/telemetry/core/network_controller.py b/telemetry/telemetry/core/network_controller.py
index 88244e18467012c972b69dba0d44a0cca190edfe..5acb034ad8473b3f7c8c2dfcbe4ad6fa3dcbc7b6 100644
--- a/telemetry/telemetry/core/network_controller.py
+++ b/telemetry/telemetry/core/network_controller.py
@@ -11,6 +11,10 @@ class NetworkController(object):
 
   def __init__(self, network_controller_backend):
     self._network_controller_backend = network_controller_backend
+    self.InitializeIfNeeded()
+
+  def InitializeIfNeeded(self):
+    self._network_controller_backend.InitializeIfNeeded()
 
   def Open(self, wpr_mode, extra_wpr_args):
     self._network_controller_backend.Open(wpr_mode, extra_wpr_args)