Revert 8532 "Ensure only temporary IPv6 address is selected as t..."

> Ensure only temporary IPv6 address is selected as the best IP.
> 
> The current logic of IPv6 selection could still have a small chance for non-temporary address to be selected for candidate. The scenario is that when there is no non-deprecated temporary IP, the global ones could be selected.
> 
> Global ones don't necessarily carry MAC. However, instead of comparing whether it has the MAC in it (sometimes 5 out of 6 elements from a MAC are the same, only one diffs), we should just err on the safe side.
> 
> BUG=4348
> R=juberti@webrtc.org, pthatcher@webrtc.org
> 
> Review URL: https://webrtc-codereview.appspot.com/38289004

TBR=guoweis@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/38319004

Cr-Commit-Position: refs/heads/master@{#8534}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8534 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/network_unittest.cc b/webrtc/base/network_unittest.cc
index 3934593..662dc70 100644
--- a/webrtc/base/network_unittest.cc
+++ b/webrtc/base/network_unittest.cc
@@ -759,20 +759,18 @@
   ipv6_network.AddIP(ip);
   EXPECT_EQ(ipv6_network.GetBestIP(), IPAddress());
 
-  // Add ULA one. ULA is the unique local address which starts with either 0xfc
-  // or 0xfd. Since it doesn't have the temporary address attribute, it'll be
-  // ignored.
+  // Add ULA one. ULA is unique local address which is starting either
+  // with 0xfc or 0xfd.
   ipstr = "fd00:fa00:4:1000:be30:5bff:fee5:c4";
   ASSERT_TRUE(IPFromString(ipstr, IPV6_ADDRESS_FLAG_NONE, &ip));
   ipv6_network.AddIP(ip);
-  EXPECT_EQ(ipv6_network.GetBestIP(), IPAddress());
+  EXPECT_EQ(ipv6_network.GetBestIP(), static_cast<IPAddress>(ip));
 
-  // Add global one. Since it doesn't have the temporary address attribute,
-  // it'll be ignored.
+  // Add global one.
   ipstr = "2401:fa00:4:1000:be30:5bff:fee5:c5";
   ASSERT_TRUE(IPFromString(ipstr, IPV6_ADDRESS_FLAG_NONE, &ip));
   ipv6_network.AddIP(ip);
-  EXPECT_EQ(ipv6_network.GetBestIP(), IPAddress());
+  EXPECT_EQ(ipv6_network.GetBestIP(), static_cast<IPAddress>(ip));
 
   // Add global dynamic temporary one.
   ipstr = "2401:fa00:4:1000:be30:5bff:fee5:c6";