Suppress the wtf log for notifications that are expected

PARTIAL and NO_INTERNET may happen in the real world for
those transport types that provide internet. These two
notification types should be reasonable notificaitons, not a
terrible failure as the log. For Q, it may be too risky to
display more notifications with other information instead of
SSID. Thus, suppress the wtf log for these two notifications.

Bug: 135043192
Test: atest FrameworksNetTests
Change-Id: I35f3718fa93b403858587d918f0bc596f6c92f3e
diff --git a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
index f6735d9..bcf5a71 100644
--- a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
+++ b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
@@ -178,15 +178,31 @@
         CharSequence title;
         CharSequence details;
         int icon = getIcon(transportType, notifyType);
-        if (notifyType == NotificationType.NO_INTERNET && transportType == TRANSPORT_WIFI) {
-            title = r.getString(R.string.wifi_no_internet,
-                    WifiInfo.removeDoubleQuotes(nai.networkCapabilities.getSSID()));
-            details = r.getString(R.string.wifi_no_internet_detailed);
-        } else if (notifyType == NotificationType.PARTIAL_CONNECTIVITY
-                && transportType == TRANSPORT_WIFI) {
-            title = r.getString(R.string.network_partial_connectivity,
-                    WifiInfo.removeDoubleQuotes(nai.networkCapabilities.getSSID()));
-            details = r.getString(R.string.network_partial_connectivity_detailed);
+        if (notifyType == NotificationType.NO_INTERNET) {
+            switch (transportType) {
+                case TRANSPORT_WIFI:
+                    title = r.getString(R.string.wifi_no_internet,
+                        WifiInfo.removeDoubleQuotes(nai.networkCapabilities.getSSID()));
+                    details = r.getString(R.string.wifi_no_internet_detailed);
+                    break;
+                default:
+                    // TODO: Display notifications for those networks that provide internet.
+                    // except VPN.
+                    return;
+            }
+
+        } else if (notifyType == NotificationType.PARTIAL_CONNECTIVITY) {
+            switch (transportType) {
+                case TRANSPORT_WIFI:
+                    title = r.getString(R.string.network_partial_connectivity,
+                        WifiInfo.removeDoubleQuotes(nai.networkCapabilities.getSSID()));
+                    details = r.getString(R.string.network_partial_connectivity_detailed);
+                    break;
+                default:
+                    // TODO: Display notifications for those networks that provide internet.
+                    // except VPN.
+                    return;
+            }
         } else if (notifyType == NotificationType.LOST_INTERNET &&
                 transportType == TRANSPORT_WIFI) {
             title = r.getString(R.string.wifi_no_internet,