[Cronet] Fix test issue on Marshmallow, need to call parent setUp()

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

 // Copyright 2017 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;
 
 import android.support.test.filters.SmallTest;
 
 import org.chromium.base.test.util.Feature;
 import org.chromium.net.impl.CronetUrlRequestContext;
@@ skipping 10 matching lines @@
      */
     private boolean mTestWasRun;
     /**
      * For {@link #testRunBothImplsMustRun}, use {@link #mTestNativeImplRun} to verify that the
      * test is run against the native implementation.
      */
     private boolean mTestNativeImplRun;
 
     @Override
     protected void setUp() throws Exception {
+        super.setUp();
         mTestFramework = startCronetTestFramework();
     }
 
     @Override
     protected void tearDown() throws Exception {
         if (getName().contains("MustRun") && !mTestWasRun) {
             fail(getName() + " should have run but didn't.");
         }
         super.tearDown();
     }
@@ skipping 31 matching lines @@
     @SmallTest
     @Feature({"Cronet"})
     @OnlyRunNativeCronet
     public void testRunOnlyNativeMustRun() {
         assertFalse(testingJavaImpl());
         assertFalse(mTestWasRun);
         mTestWasRun = true;
         assertEquals(mTestFramework.mCronetEngine.getClass(), CronetUrlRequestContext.class);
     }
 }