android: Improve ActivityStatus and add ChromiumActivity.

net/android/java/src/org/chromium/net/NetworkChangeNotifierAutoDetect.java

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.telephony.TelephonyManager;
 import android.util.Log;
 
 import org.chromium.base.ActivityStatus;
 
 /**
  * Used by the NetworkChangeNotifier to listens to platform changes in connectivity.
  * Note that use of this class requires that the app have the platform
  * ACCESS_NETWORK_STATE permission.
  */
 public class NetworkChangeNotifierAutoDetect extends BroadcastReceiver
-        implements ActivityStatus.Listener {
+        implements ActivityStatus.StateListener {
 
     /** Queries the ConnectivityManager for information about the current connection. */
     static class ConnectivityManagerDelegate {
         private ConnectivityManager mConnectivityManager;
 
         ConnectivityManagerDelegate(Context context) {
             if (context != null) {
                 mConnectivityManager = (ConnectivityManager)
                        context.getSystemService(Context.CONNECTIVITY_SERVICE);
             }
@@ skipping 31 matching lines @@
     public static interface Observer {
         public void onConnectionTypeChanged(int newConnectionType);
     }
 
     public NetworkChangeNotifierAutoDetect(Observer observer, Context context) {
         mObserver = observer;
         mContext = context;
         mConnectivityManagerDelegate = new ConnectivityManagerDelegate(context);
         mConnectionType = currentConnectionType(context);
 
-        ActivityStatus status = ActivityStatus.getInstance();
-        if (!status.isPaused()) {
+        if (ActivityStatus.getState() != ActivityStatus.PAUSED) {

[digit1, 2012/12/04 15:41:55]

Same remark here, do we really want to stop this on pause?

           registerReceiver();
         }
-        status.registerListener(this);
+        ActivityStatus.registerStateListener(this);
     }
 
     /**
      * Allows overriding the ConnectivityManagerDelegate for tests.
      */
     void setConnectivityManagerDelegateForTests(ConnectivityManagerDelegate delegate) {
         mConnectivityManagerDelegate = delegate;
     }
 
     public void destroy() {
@@ skipping 70 matching lines @@
         int newConnectionType = noConnection ?
                 NetworkChangeNotifier.CONNECTION_NONE : currentConnectionType(context);
 
         if (newConnectionType != mConnectionType) {
             mConnectionType = newConnectionType;
             Log.d(TAG, "Network connectivity changed, type is: " + mConnectionType);
             mObserver.onConnectionTypeChanged(newConnectionType);
         }
     }
 
-    // AcitivityStatus.Listener
+    // ActivityStatus.StateListener
     @Override
-    public void onActivityStatusChanged(boolean isPaused) {
-        if (isPaused) {
+    public void onActivityStateChange(int state) {
+        if (state == ActivityStatus.PAUSED) {
             unregisterReceiver();
-        } else {
+        } else if (state == ActivityStatus.RESUMED) {
             registerReceiver();
         }
     }
 
     private static class NetworkConnectivityIntentFilter extends IntentFilter {
         NetworkConnectivityIntentFilter() {
                 addAction(ConnectivityManager.CONNECTIVITY_ACTION);
         }
     }
 }