Move the concept of multiple route into Network

webrtc/base/network.cc

Index: webrtc/base/network.cc
diff --git a/webrtc/base/network.cc b/webrtc/base/network.cc
index 2081c94e2c767f626b77920e8b2dd8799d6a1c98..7fe5229512f63b10240b7e7637e41e3ad689dc7e 100644
--- a/webrtc/base/network.cc
+++ b/webrtc/base/network.cc
@@ -164,7 +164,9 @@ NetworkManager::~NetworkManager() {
 }
 
 NetworkManagerBase::NetworkManagerBase()
-    : max_ipv6_networks_(kMaxIPv6Networks), ipv6_enabled_(true) {
+    : max_ipv6_networks_(kMaxIPv6Networks),
+      ipv6_enabled_(true),
+      network_permission_state_(NetworkManager::STATE_UNKNOWN) {
 }
 
 NetworkManagerBase::~NetworkManagerBase() {
@@ -306,6 +308,8 @@ void NetworkManagerBase::MergeNetworkList(const NetworkList& new_networks,
       }
     }
   }
+
+  network_permission_state_ = STATE_ALLOWED;
 }
 
 BasicNetworkManager::BasicNetworkManager()