Pull SecurityStateModel out into a component

chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabObserver.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.customtabs;
 
 import android.app.Application;
 import android.os.IBinder;
 import android.os.SystemClock;
 import android.support.customtabs.CustomTabsCallback;
 
 import org.chromium.base.metrics.RecordHistogram;
-import org.chromium.chrome.browser.ssl.ConnectionSecurityLevel;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabObserver;
+import org.chromium.components.security_state.ConnectionSecurityLevel;
 import org.chromium.content_public.browser.LoadUrlParams;
 
 import java.util.concurrent.TimeUnit;
 
 /**
  * A {@link TabObserver} that also handles custom tabs specific logging and messaging.
  */
 class CustomTabObserver extends EmptyTabObserver {
     private CustomTabsConnection mCustomTabsConnection;
     private IBinder mSession;
@@ skipping 80 matching lines @@
     public void onPageLoadFailed(Tab tab, int errorCode) {
         resetPageLoadTracking();
         mCustomTabsConnection.notifyNavigationEvent(
                 mSession, CustomTabsCallback.NAVIGATION_FAILED);
     }
 
     private void resetPageLoadTracking() {
         mCurrentState = STATE_RESET;
         mIntentReceivedTimestamp = -1;
     }
-}
+}