[Android] Add a Java version of net::test_server::EmbeddedTestServer.

net/test/embedded_test_server/embedded_test_server.h

Index: net/test/embedded_test_server/embedded_test_server.h
diff --git a/net/test/embedded_test_server/embedded_test_server.h b/net/test/embedded_test_server/embedded_test_server.h
index a49f95ca1da8caa5ce336c87bf1377ca89e71d38..5051826f48a90c7caeeb554fd56e1775210bc625 100644
--- a/net/test/embedded_test_server/embedded_test_server.h
+++ b/net/test/embedded_test_server/embedded_test_server.h
@@ -206,7 +206,7 @@ class EmbeddedTestServer : public StreamListenSocket::Delegate {
   DISALLOW_COPY_AND_ASSIGN(EmbeddedTestServer);
 };
 
-}  // namespace test_servers
+}  // namespace test_server
 }  // namespace net
 
 #endif  // NET_TEST_EMBEDDED_TEST_SERVER_EMBEDDED_TEST_SERVER_H_