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

chrome/android/java/src/org/chromium/chrome/browser/firstrun/ForcedSigninProcessor.java

Index: chrome/android/java/src/org/chromium/chrome/browser/firstrun/ForcedSigninProcessor.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/firstrun/ForcedSigninProcessor.java b/chrome/android/java/src/org/chromium/chrome/browser/firstrun/ForcedSigninProcessor.java
deleted file mode 100644
index f4b90b4007ac8e6965939118549dd51dfd2227be..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/firstrun/ForcedSigninProcessor.java
+++ /dev/null
@@ -1,71 +0,0 @@
-// 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.firstrun;
-
-import android.accounts.Account;
-import android.content.Context;
-
-import org.chromium.chrome.browser.services.AndroidEduAndChildAccountHelper;
-import org.chromium.chrome.browser.signin.SigninManager;
-import org.chromium.chrome.browser.util.FeatureUtilities;
-import org.chromium.sync.signin.AccountManagerHelper;
-import org.chromium.sync.signin.ChromeSigninController;
-
-/**
- * A helper to perform all necessary steps for forced sign in.
- * The helper performs:
- * - necessary Android EDU and child account checks;
- * - automatic non-interactive forced sign in for Android EDU and child accounts; and
- * The helper calls the observer's onSignInComplete() if
- * - nothing needs to be done, or when
- * - the sign in is complete.
- *
- * Usage:
- * ForcedSigninProcessor.start(appContext).
- */
-public final class ForcedSigninProcessor {
-    /*
-     * Only for static usage.
-     */
-    private ForcedSigninProcessor() {}
-
-    /**
-     * Check whether a forced automatic signin is required and process it if it is.
-     * This is triggered once per Chrome Application lifetime and everytime the Account state
-     * changes with early exit if an account has already been signed in.
-     */
-    public static void start(final Context appContext) {
-        if (ChromeSigninController.get(appContext).isSignedIn()) return;
-        new AndroidEduAndChildAccountHelper() {
-            @Override
-            public void onParametersReady() {
-                boolean isAndroidEduDevice = isAndroidEduDevice();
-                boolean hasChildAccount = hasChildAccount();
-                // If neither a child account or and EDU device, we return.
-                if (!isAndroidEduDevice && !hasChildAccount) return;
-                // Child account and EDU device at the same time is not supported.
-                assert !(isAndroidEduDevice && hasChildAccount);
-                int signinType = hasChildAccount ? SigninManager.SIGNIN_TYPE_FORCED_CHILD_ACCOUNT
-                                                 : SigninManager.SIGNIN_TYPE_FORCED_EDU;
-                processAutomaticSignIn(appContext, signinType);
-            }
-        }.start(appContext);
-    }
-
-    /**
-     * Processes the fully automatic non-FRE-related forced sign-in.
-     * This is used to enforce the environment for Android EDU and child accounts.
-     */
-    private static void processAutomaticSignIn(Context appContext, int signinType) {
-        final Account[] googleAccounts = AccountManagerHelper.get(appContext).getGoogleAccounts();
-        SigninManager signinManager = SigninManager.get(appContext);
-        if (!FeatureUtilities.canAllowSync(appContext) || !signinManager.isSignInAllowed()
-                || googleAccounts.length != 1) {
-            return;
-        }
-        signinManager.signInToSelectedAccount(null, googleAccounts[0], signinType,
-                SigninManager.SIGNIN_SYNC_IMMEDIATELY, false, null);
-    }
-}