Un-remove legacy ConnectivityManager API.

These were @removed too soon.  We need to keep them @deprecated until
the bulk of devices support the new API and then we can remove them.

bug:22728205
Change-Id: If1b46ff1878f1778517624112b195c461645ddd1

Author: Robert Greenwalt

api/current.txt

@@ -18147,8 +18147,11 @@ package android.net {
     method public boolean requestBandwidthUpdate(android.net.Network);
     method public void requestNetwork(android.net.NetworkRequest, android.net.ConnectivityManager.NetworkCallback);
     method public void requestNetwork(android.net.NetworkRequest, android.app.PendingIntent);
+    method public deprecated boolean requestRouteToHost(int, int);
     method public deprecated void setNetworkPreference(int);
     method public static deprecated boolean setProcessDefaultNetwork(android.net.Network);
+    method public deprecated int startUsingNetworkFeature(int, java.lang.String);
+    method public deprecated int stopUsingNetworkFeature(int, java.lang.String);
     method public void unregisterNetworkCallback(android.net.ConnectivityManager.NetworkCallback);
     method public void unregisterNetworkCallback(android.app.PendingIntent);
     field public static final deprecated java.lang.String ACTION_BACKGROUND_DATA_SETTING_CHANGED = "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED";

api/removed.txt

@@ -34,13 +34,6 @@ package android.media {
 
 package android.net {
 
-  public class ConnectivityManager {
-    method public deprecated boolean requestRouteToHost(int, int);
-    method public deprecated boolean requestRouteToHostAddress(int, java.net.InetAddress);
-    method public deprecated int startUsingNetworkFeature(int, java.lang.String);
-    method public deprecated int stopUsingNetworkFeature(int, java.lang.String);
-  }
-
   public class SSLCertificateSocketFactory extends javax.net.ssl.SSLSocketFactory {
     method public static deprecated org.apache.http.conn.ssl.SSLSocketFactory getHttpSocketFactory(int, android.net.SSLSessionCache);
   }

api/system-current.txt

@@ -19660,8 +19660,11 @@ package android.net {
     method public boolean requestBandwidthUpdate(android.net.Network);
     method public void requestNetwork(android.net.NetworkRequest, android.net.ConnectivityManager.NetworkCallback);
     method public void requestNetwork(android.net.NetworkRequest, android.app.PendingIntent);
+    method public deprecated boolean requestRouteToHost(int, int);
     method public deprecated void setNetworkPreference(int);
     method public static deprecated boolean setProcessDefaultNetwork(android.net.Network);
+    method public deprecated int startUsingNetworkFeature(int, java.lang.String);
+    method public deprecated int stopUsingNetworkFeature(int, java.lang.String);
     method public void unregisterNetworkCallback(android.net.ConnectivityManager.NetworkCallback);
     method public void unregisterNetworkCallback(android.app.PendingIntent);
     field public static final deprecated java.lang.String ACTION_BACKGROUND_DATA_SETTING_CHANGED = "android.net.conn.BACKGROUND_DATA_SETTING_CHANGED";

api/system-removed.txt

@@ -34,13 +34,6 @@ package android.media {
 
 package android.net {
 
-  public class ConnectivityManager {
-    method public deprecated boolean requestRouteToHost(int, int);
-    method public deprecated boolean requestRouteToHostAddress(int, java.net.InetAddress);
-    method public deprecated int startUsingNetworkFeature(int, java.lang.String);
-    method public deprecated int stopUsingNetworkFeature(int, java.lang.String);
-  }
-
   public class SSLCertificateSocketFactory extends javax.net.ssl.SSLSocketFactory {
     method public static deprecated org.apache.http.conn.ssl.SSLSocketFactory getHttpSocketFactory(int, android.net.SSLSessionCache);
   }

core/java/android/net/ConnectivityManager.java

@@ -892,7 +892,6 @@ public NetworkCapabilities getNetworkCapabilities(Network network) {
      *
      * @deprecated Deprecated in favor of the cleaner
      *             {@link #requestNetwork(NetworkRequest, NetworkCallback)} API.
-     * @removed
      */
     public int startUsingNetworkFeature(int networkType, String feature) {
         NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature);
@@ -939,8 +938,7 @@ public int startUsingNetworkFeature(int networkType, String feature) {
      * implementation+feature combination, except that the value {@code -1}
      * always indicates failure.
      *
-     * @deprecated Deprecated in favor of the cleaner {@link unregisterNetworkCallback} API.
-     * @removed
+     * @deprecated Deprecated in favor of the cleaner {@link #unregisterNetworkCallback} API.
      */
     public int stopUsingNetworkFeature(int networkType, String feature) {
         NetworkCapabilities netCap = networkCapabilitiesForFeature(networkType, feature);
@@ -1220,7 +1218,6 @@ private boolean removeRequestForFeature(NetworkCapabilities netCap) {
      * @deprecated Deprecated in favor of the
      *             {@link #requestNetwork(NetworkRequest, NetworkCallback)},
      *             {@link #bindProcessToNetwork} and {@link Network#getSocketFactory} API.
-     * @removed
      */
     public boolean requestRouteToHost(int networkType, int hostAddress) {
         return requestRouteToHostAddress(networkType, NetworkUtils.intToInetAddress(hostAddress));
@@ -1239,7 +1236,6 @@ public boolean requestRouteToHost(int networkType, int hostAddress) {
      * @hide
      * @deprecated Deprecated in favor of the {@link #requestNetwork} and
      *             {@link #bindProcessToNetwork} API.
-     * @removed
      */
     public boolean requestRouteToHostAddress(int networkType, InetAddress hostAddress) {
         try {