Fix up visibility of fields.

Author: shs96c

java/server/src/org/openqa/selenium/remote/server/Passthrough.java

@@ -41,7 +41,7 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-public class Passthrough implements SessionCodec {
+class Passthrough implements SessionCodec {
 
   private final static Logger LOG = Logger.getLogger(Passthrough.class.getName());
 

java/server/src/org/openqa/selenium/remote/server/ProtocolConverter.java

@@ -43,7 +43,7 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-public class ProtocolConverter implements SessionCodec {
+class ProtocolConverter implements SessionCodec {
 
   private final static ImmutableSet<String> IGNORED_REQ_HEADERS = ImmutableSet.<String>builder()
       .add("connection")

java/server/src/org/openqa/selenium/remote/server/SessionFactory.java

@@ -23,6 +23,6 @@
 import java.nio.file.Path;
 import java.util.Set;
 
-public interface SessionFactory {
+interface SessionFactory {
   ActiveSession apply(Path capabilitiesBlob, Set<Dialect> downstreamDialects);
 }

java/server/src/org/openqa/selenium/remote/server/TeeReader.java

@@ -21,7 +21,7 @@
 import java.io.Reader;
 import java.io.Writer;
 
-public class TeeReader extends Reader {
+class TeeReader extends Reader {
 
   private final Reader source;
   private final Writer[] sinks;