Add NetworkHandler to own network handlers in src/chromeos/network

chrome/browser/chromeos/system/ash_system_tray_delegate.cc

Index: chrome/browser/chromeos/system/ash_system_tray_delegate.cc
diff --git a/chrome/browser/chromeos/system/ash_system_tray_delegate.cc b/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
index de1d8247133760adc4c35137aefbb51d5ad5d267..f0c2d50f60f0f0842be524f06d57bab74b836436 100644
--- a/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
+++ b/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
@@ -479,7 +479,8 @@ class SystemTrayDelegate : public ash::SystemTrayDelegate,
 
     std::string page = chrome::kInternetOptionsSubPage;
     const chromeos::NetworkState* network = service_path.empty() ? NULL :
-        chromeos::NetworkStateHandler::Get()->GetNetworkState(service_path);
+        NetworkHandler::Get()->network_state_handler()->GetNetworkState(
+            service_path);
     if (network) {
       std::string name(network->name());
       if (name.empty() && network->type() == flimflam::kTypeEthernet)
@@ -741,7 +742,8 @@ class SystemTrayDelegate : public ash::SystemTrayDelegate,
 
   virtual void ConfigureNetwork(const std::string& network_id) OVERRIDE {
     const chromeos::NetworkState* network = network_id.empty() ? NULL :
-        chromeos::NetworkStateHandler::Get()->GetNetworkState(network_id);
+        NetworkHandler::Get()->network_state_handler()->GetNetworkState(
+            network_id);
     if (!network) {
       LOG(ERROR) << "ConfigureNetwork: Network not found: " << network_id;
       return;