Revert of [Android]Don't check for child account/EDU device for every activity.

chrome/android/java/src/org/chromium/chrome/browser/document/DocumentActivity.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.document;
 
 import android.annotation.TargetApi;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.os.Build;
@@ skipping 15 matching lines @@
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeApplication;
 import org.chromium.chrome.browser.IntentHandler;
 import org.chromium.chrome.browser.KeyboardShortcuts;
 import org.chromium.chrome.browser.TabState;
 import org.chromium.chrome.browser.UrlUtilities;
 import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel.StateChangeReason;
 import org.chromium.chrome.browser.compositor.layouts.LayoutManagerDocument;
 import org.chromium.chrome.browser.document.DocumentTab.DocumentTabObserver;
 import org.chromium.chrome.browser.enhancedbookmarks.EnhancedBookmarkUtils;
-import org.chromium.chrome.browser.firstrun.FirstRunSigninProcessor;
+import org.chromium.chrome.browser.firstrun.FirstRunSignInProcessor;
 import org.chromium.chrome.browser.firstrun.FirstRunStatus;
 import org.chromium.chrome.browser.metrics.UmaUtils;
 import org.chromium.chrome.browser.ntp.NewTabPage;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.preferences.datareduction.DataReductionPreferences;
 import org.chromium.chrome.browser.preferences.datareduction.DataReductionPromoScreen;
 import org.chromium.chrome.browser.signin.SigninPromoScreen;
 import org.chromium.chrome.browser.ssl.ConnectionSecurityLevel;
 import org.chromium.chrome.browser.tab.Tab;
@@ skipping 159 matching lines @@
                 // Data reduction promo should be temporarily suppressed if the sign in promo is
                 // shown to avoid nagging users too much.
                 if (!SigninPromoScreen.launchSigninPromoIfNeeded(this)) {
                     DataReductionPromoScreen.launchDataReductionPromo(this);
                 }
             } else {
                 preferenceManager.setPromosSkippedOnFirstStart(true);
             }
         }
 
-        FirstRunSigninProcessor.start(this);
+        FirstRunSignInProcessor.start(this);
 
         if (!preferenceManager.hasAttemptedMigrationOnUpgrade()) {
             InitializationObserver observer = new InitializationObserver(
                     ChromeApplication.getDocumentTabModelSelector().getModel(false)) {
                 @Override
                 protected void runImmediately() {
                     DocumentMigrationHelper.migrateTabsToDocumentForUpgrade(DocumentActivity.this,
                             DocumentMigrationHelper.FINALIZE_MODE_NO_ACTION);
                 }
 
@@ skipping 623 matching lines @@
 
     /**
      * Launch a new DocumentActivity showing the new tab page.
      * @param incognito Whether the new NTP should be in incognito mode.
      */
     private void launchNtp(boolean incognito) {
         if (incognito && !PrefServiceBridge.getInstance().isIncognitoModeEnabled()) return;
         getTabCreator(incognito).launchNTP();
     }
 }