Merge "[MS63.1] Remove TrafficStats.TAG_SYSTEM_DOWNLOAD dependency" am: 3a57e69dfe am: 3deb5c703a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1952106

Change-Id: I1250e9246ca66cc660605510d22187c5886cb625

framework-t/src/android/net/TrafficStats.java

@@ -281,6 +281,18 @@ public class TrafficStats {
         setThreadStatsTag(TAG_SYSTEM_APP);
     }
 
+    /**
+     * Set active tag to use when accounting {@link Socket} traffic originating
+     * from the current thread. The tag used internally is well-defined to
+     * distinguish all download provider traffic.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static void setThreadStatsTagDownload() {
+        setThreadStatsTag(TAG_SYSTEM_DOWNLOAD);
+    }
+
     /**
      * Get the active tag used when accounting {@link Socket} traffic originating
      * from the current thread. Only one active tag per thread is supported.