Fix CronetHttpURLConnectionTest#testServerHangsUp flake

components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java

Index: components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java b/components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java
index bc8ef9873c3d469884bf32c6cd2cc343154c5dc0..3cb8aa50eaecbc62b28253847b618fda43620061 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/net/urlconnection/CronetHttpURLConnectionTest.java
@@ -846,17 +846,8 @@ public class CronetHttpURLConnectionTest extends CronetTestBase {
     @Feature({"Cronet"})
     @CompareDefaultWithCronet
     public void testServerHangsUp() throws Exception {
-        URL url = new URL(NativeTestServer.getEchoBodyURL());
+        URL url = new URL(NativeTestServer.getInfiniteResponseURL());
         final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-        // Make the server echo a large request body, so it exceeds the internal
-        // read buffer.
-        connection.setDoOutput(true);
-        connection.setRequestMethod("POST");
-        byte[] largeData = TestUtil.getLargeData();
-        connection.setFixedLengthStreamingMode(largeData.length);
-        OutputStream out = connection.getOutputStream();
-        out.write(largeData);
-
         InputStream in = connection.getInputStream();
         // Read one byte and shut down the server.
         assertTrue(in.read() != 1);