Defaulting all downloads to go through Chrome network stack

chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImplTest.java

 // Copyright 2016 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.chrome.browser.externalnav;
 
 import android.content.IntentFilter;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ResolveInfo;
 import android.test.suitebuilder.annotation.SmallTest;
 
-import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.test.ChromeActivityTestCaseBase;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 /**
  * Instrumentation tests for {@link ExternalNavigationHandler}.
@@ skipping 74 matching lines @@
         info.filter = new IntentFilter();
         info.filter.addDataAuthority("http://www.google.com", "80");
         info.activityInfo = new ActivityInfo();
         info.activityInfo.packageName = "com.foo.bar";
         List<ResolveInfo> resolveInfos = makeResolveInfos(info);
         assertEquals(0, ExternalNavigationDelegateImpl.getSpecializedHandlersWithFilter(
                                 resolveInfos, packageName).size());
     }
 
     @SmallTest
-    @CommandLineFlags.Add({"disable-features=SystemDownloadManager"})
     @RetryOnFailure
     public void testIsDownload_noSystemDownloadManager() throws Exception {
         ExternalNavigationDelegateImpl delegate = new ExternalNavigationDelegateImpl(
                 getActivity().getActivityTab());
         assertTrue("pdf should be a download, no viewer in Android Chrome",
                 delegate.isPdfDownload("http://somesampeleurldne.com/file.pdf"));
         assertFalse("URL is not a file, but web page",
                 delegate.isPdfDownload("http://somesampleurldne.com/index.html"));
         assertFalse("URL is not a file url",
                 delegate.isPdfDownload("http://somesampeleurldne.com/not.a.real.extension"));
         assertFalse("URL is an image, can be viewed in Chrome",
                 delegate.isPdfDownload("http://somesampleurldne.com/image.jpg"));
         assertFalse("URL is a text file can be viewed in Chrome",
                 delegate.isPdfDownload("http://somesampleurldne.com/copy.txt"));
     }
 
-    @SmallTest
-    @CommandLineFlags.Add({"enable-features=SystemDownloadManager"})
-    public void testIsDownload_withSystemDownloadManager() throws Exception {
-        ExternalNavigationDelegateImpl delegate = new ExternalNavigationDelegateImpl(
-                getActivity().getActivityTab());
-        assertFalse("isDownload should return false with SystemDownloadManager enabled",
-                delegate.isPdfDownload("http://somesampeleurldne.com/file.pdf"));
-    }
-
     @Override
     public void startMainActivity() throws InterruptedException {
         startMainActivityOnBlankPage();
     }
 }