[NS04.8] Address comments from NS04 and NS04.5

Bug: 167544279
Test: ConnectivityServiceTest
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Merged-In: Ia930b3d3e723075cb47e267d589c576ee2d4490f
Change-Id: Ia930b3d3e723075cb47e267d589c576ee2d4490f
  (cherry-picked from ag/13982288)
diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index d592488..af8726e 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -3341,9 +3341,10 @@
      * Register or update a network offer with ConnectivityService.
      *
      * ConnectivityService keeps track of offers made by the various providers and matches
-     * them to networking requests made by apps or the system. The provider supplies a score
-     * and the capabilities of the network it might be able to bring up ; these act as filters
-     * used by ConnectivityService to only send those requests that can be fulfilled by the
+     * them to networking requests made by apps or the system. A callback identifies an offer
+     * uniquely, and later calls with the same callback update the offer. The provider supplies a
+     * score and the capabilities of the network it might be able to bring up ; these act as
+     * filters used by ConnectivityService to only send those requests that can be fulfilled by the
      * provider.
      *
      * The provider is under no obligation to be able to bring up the network it offers at any