Revert of Move SecurityLevel into a class of its own

chrome/android/javatests_shell/src/org/chromium/chrome/browser/TabTest.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.chrome.browser;
 
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.Feature;
-import org.chromium.chrome.browser.ssl.ConnectionSecurityHelperSecurityLevel;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabSelectionType;
 import org.chromium.chrome.shell.ChromeShellTestBase;
 import org.chromium.content.browser.test.util.CallbackHelper;
 
 /**
  * Tests for Tab class.
  */
 public class TabTest extends ChromeShellTestBase {
     private Tab mTab;
     private CallbackHelper mOnTitleUpdatedHelper;
@@ skipping 69 matching lines @@
                 getInstrumentation().callActivityOnStart(getActivity());
                 getInstrumentation().callActivityOnResume(getActivity());
             }
         });
 
         // The tab should be restored and visible.
         assertFalse(tab.isHidden());
         assertFalse(tab.needsReload());
         assertFalse(tab.isShowingSadTab());
     }
-
-    @SmallTest
-    @Feature({"Tab"})
-    public void testTabSecurityLevel() {
-        assertEquals(ConnectionSecurityHelperSecurityLevel.NONE, mTab.getSecurityLevel());
-    }
 }