[Cronet] Mark request as complete when OutputStream fails

components/cronet/android/java/src/org/chromium/net/urlconnection/CronetOutputStream.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net.urlconnection;
 
 import org.chromium.net.UploadDataProvider;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ skipping 36 matching lines @@
     void setRequestCompleted(IOException exception) {
         mException = exception;
         mRequestCompleted = true;
     }
 
     /**
      * Throws an IOException if the stream is closed or the request is done.
      */
     protected void checkNotClosed() throws IOException {
         if (mRequestCompleted) {
-            if (mException != null) {
-                throw mException;
-            }
+            checkNoException();
             throw new IOException("Writing after request completed.");
         }
         if (mClosed) {
             throw new IOException("Stream has been closed.");
         }
     }
+
+    /**
+     * Throws the same IOException that the request is failed with. If there
+     * is no exception reported, this method is no-op.
+     */
+    protected void checkNoException() throws IOException {
+        if (mException != null) {
+            throw mException;
+        }
+    }
 }