Use supported Android network handles in Android M and newer.

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
index 0841c143d93b6099e6c90d6449c9d78e0d5b6512..e7720bb8ed91f0aa5b2fd0a1aa66dd0f040d977c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
@@ -1523,16 +1523,16 @@ public class DownloadManagerService extends BroadcastReceiver implements
     public void onMaxBandwidthChanged(double maxBandwidthMbps) {}
 
     @Override
-    public void onNetworkConnect(int netId, int connectionType) {}
+    public void onNetworkConnect(long netId, int connectionType) {}
 
     @Override
-    public void onNetworkSoonToDisconnect(int netId) {}
+    public void onNetworkSoonToDisconnect(long netId) {}
 
     @Override
-    public void onNetworkDisconnect(int netId) {}
+    public void onNetworkDisconnect(long netId) {}
 
     @Override
-    public void purgeActiveNetworkList(int[] activeNetIds) {}
+    public void purgeActiveNetworkList(long[] activeNetIds) {}
 
     private native long nativeInit();
     private native void nativeResumeDownload(