Update WebViewUpdateService to receive PACKAGE_REPLACED broadcast.

This allows the WebViewUpdateService to receive notifications that
an update has been installed and we need to trigger recreation of
the relro file.

bug: 16329377
Change-Id: I088e61487416add997995db304beca0cde71390c

services/java/com/android/server/SystemServer.java

@@ -411,7 +411,7 @@ public final class SystemServer {
             SystemConfig.getInstance();
 
             Slog.i(TAG, "WebView Update Service");
-            ServiceManager.addService("webviewupdate", new WebViewUpdateService());
+            ServiceManager.addService("webviewupdate", new WebViewUpdateService(context));
 
             Slog.i(TAG, "WebViewFactory preparation");
             WebViewFactory.prepareWebViewInSystemServer();