Unified: Support toggle of mobile data and tether.

Currently, network feature pod button may show Ethernet, mobile data &
tether in addition to WiFi. However, clicking on the button always
toggled WiFi enabled / disabled.

TEST=manual
BUG=856030

Change-Id: If39e3360a045e0b0ba64cb89c43999dd11151549
Reviewed-on: https://chromium-review.googlesource.com/1116510Reviewed-by: Yoshiki Iguchi <yoshiki@chromium.org>
Commit-Queue: Tetsui Ohkubo <tetsui@chromium.org>
Cr-Commit-Position: refs/heads/master@{#571388}

ash/system/network/network_feature_pod_controller.cc

@@ -14,13 +14,36 @@
 
 using chromeos::NetworkHandler;
 using chromeos::NetworkTypePattern;
+using chromeos::NetworkState;
 
 namespace ash {
 
 namespace {
 
 void SetNetworkEnabled(bool enabled) {
-  // TODO(tetsui): Handle other types of networks.
+  const NetworkState* network =
+      NetworkHandler::Get()->network_state_handler()->ConnectedNetworkByType(
+          NetworkTypePattern::NonVirtual());
+
+  // For cellular and tether, users are only allowed to disable them from
+  // feature pod toggle.
+  if (!enabled && network && network->Matches(NetworkTypePattern::Cellular())) {
+    NetworkHandler::Get()->network_state_handler()->SetTechnologyEnabled(
+        NetworkTypePattern::Cellular(), false,
+        chromeos::network_handler::ErrorCallback());
+    return;
+  }
+
+  if (!enabled && network && network->Matches(NetworkTypePattern::Tether())) {
+    NetworkHandler::Get()->network_state_handler()->SetTechnologyEnabled(
+        NetworkTypePattern::Tether(), false,
+        chromeos::network_handler::ErrorCallback());
+    return;
+  }
+
+  if (network && !network->Matches(NetworkTypePattern::WiFi()))
+    return;
+
   NetworkHandler::Get()->network_state_handler()->SetTechnologyEnabled(
       NetworkTypePattern::WiFi(), enabled,
       chromeos::network_handler::ErrorCallback());