Add the equals method to IceServer.

Bug: None
Change-Id: I4bac54489a44a4577cc221ba51351e4a3a92e69b
Reviewed-on: https://webrtc-review.googlesource.com/c/116081
Commit-Queue: Qingsi Wang <qingsi@webrtc.org>
Reviewed-by: Honghai Zhang <honghaiz@webrtc.org>
Reviewed-by: Alex Glaznev <glaznev@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26271}

sdk/android/api/org/webrtc/PeerConnection.java

@@ -12,6 +12,7 @@ package org.webrtc;
 
 import android.support.annotation.Nullable;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import org.webrtc.DataChannel;
@@ -222,6 +223,31 @@ public class PeerConnection {
           + "] [" + tlsAlpnProtocols + "] [" + tlsEllipticCurves + "]";
     }
 
+    @Override
+    public boolean equals(@Nullable Object obj) {
+      if (obj == null) {
+        return false;
+      }
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof IceServer)) {
+        return false;
+      }
+      IceServer other = (IceServer) obj;
+      return (uri.equals(other.uri) && urls.equals(other.urls) && username.equals(other.username)
+          && password.equals(other.password) && tlsCertPolicy.equals(other.tlsCertPolicy)
+          && hostname.equals(other.hostname) && tlsAlpnProtocols.equals(other.tlsAlpnProtocols)
+          && tlsEllipticCurves.equals(other.tlsEllipticCurves));
+    }
+
+    @Override
+    public int hashCode() {
+      Object[] values = {uri, urls, username, password, tlsCertPolicy, hostname, tlsAlpnProtocols,
+          tlsEllipticCurves};
+      return Arrays.hashCode(values);
+    }
+
     public static Builder builder(String uri) {
       return new Builder(Collections.singletonList(uri));
     }