Revert "Remove framework code that has moved to frameworks/libs/net"

Revert "Use createRandomUnicastAddress from MacAddressUtils"

Revert "Add net-utils-framework-net to telephony-common"

Revert submission 1191997-net-utils-framework-net

Reason for revert: Droidcop-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_qt-qpr1-dev-plus-aosp&target=aosp_taimen-userdebug&lkgb=6208131&lkbb=6208273&fkbb=6208273, bug b/149551544
Reverted Changes:
Ib1c807d64:Use createRandomUnicastAddress from MacAddressUtil...
I9e0f297e0:Add net-utils-framework-net to telephony-common
Ieb8927f9a:Remove framework code that has moved to frameworks...

Change-Id: I2824f781babd9f7e0bb9df524dadf6b8397dcaa1
diff --git a/tests/net/java/android/net/MacAddressTest.java b/tests/net/java/android/net/MacAddressTest.java
index 91c9a2a..daf187d 100644
--- a/tests/net/java/android/net/MacAddressTest.java
+++ b/tests/net/java/android/net/MacAddressTest.java
@@ -22,8 +22,6 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
-import android.net.util.MacAddressUtils;
-
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
@@ -124,11 +122,11 @@
 
         for (MacAddress mac : multicastAddresses) {
             String msg = mac.toString() + " expected to be a multicast address";
-            assertTrue(msg, MacAddressUtils.isMulticastAddress(mac));
+            assertTrue(msg, mac.isMulticastAddress());
         }
         for (MacAddress mac : unicastAddresses) {
             String msg = mac.toString() + " expected not to be a multicast address";
-            assertFalse(msg, MacAddressUtils.isMulticastAddress(mac));
+            assertFalse(msg, mac.isMulticastAddress());
         }
     }
 
@@ -158,7 +156,7 @@
     public void testMacAddressConversions() {
         final int iterations = 10000;
         for (int i = 0; i < iterations; i++) {
-            MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
+            MacAddress mac = MacAddress.createRandomUnicastAddress();
 
             String stringRepr = mac.toString();
             byte[] bytesRepr = mac.toByteArray();
@@ -190,7 +188,7 @@
         final String expectedLocalOui = "26:5f:78";
         final MacAddress base = MacAddress.fromString(anotherOui + ":0:0:0");
         for (int i = 0; i < iterations; i++) {
-            MacAddress mac = MacAddressUtils.createRandomUnicastAddress(base, r);
+            MacAddress mac = MacAddress.createRandomUnicastAddress(base, r);
             String stringRepr = mac.toString();
 
             assertTrue(stringRepr + " expected to be a locally assigned address",
@@ -201,7 +199,7 @@
         }
 
         for (int i = 0; i < iterations; i++) {
-            MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
+            MacAddress mac = MacAddress.createRandomUnicastAddress();
             String stringRepr = mac.toString();
 
             assertTrue(stringRepr + " expected to be a locally assigned address",