[Cronet] Remove CriteriaHelper

components/cronet/android/test/javatests/src/org/chromium/net/CriteriaHelper.java

-// Copyright 2014 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.net;
-
-import static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
-
-import android.os.SystemClock;
-
-/**
- * Helper methods for creating and managing criteria.
- * <p>
- * If possible, use callbacks or testing delegates instead of criteria as they
- * do not introduce any polling delays. Should only use Criteria if no suitable
- * other approach exists.
- */
-public class CriteriaHelper {
-
-    /** The default maximum time to wait for a criteria to become valid. */
-    public static final long DEFAULT_MAX_TIME_TO_POLL = scaleTimeout(3000);
-
-    /**
-     * The default polling interval to wait between checking for a satisfied
-     * criteria.
-     */
-    public static final long DEFAULT_POLLING_INTERVAL = 50;
-
-    /**
-     * Checks whether the given Criteria is satisfied at a given interval, until
-     * either the criteria is satisfied, or the specified maxTimeoutMs number of
-     * ms has elapsed.
-     *
-     * @param criteria The Criteria that will be checked.
-     * @param maxTimeoutMs The maximum number of ms that this check will be
-     *         performed for before timeout.
-     * @param checkIntervalMs The number of ms between checks.
-     * @return {@code true} if checking has ended with the criteria being
-     *         satisfied.
-     * @throws InterruptedException
-     */
-    public static boolean pollForCriteria(Criteria criteria, long maxTimeoutMs,
-            long checkIntervalMs) throws InterruptedException {
-        boolean isSatisfied = criteria.isSatisfied();
-        long startTime = SystemClock.uptimeMillis();
-        while (!isSatisfied
-               && SystemClock.uptimeMillis() - startTime < maxTimeoutMs) {
-            Thread.sleep(checkIntervalMs);
-            isSatisfied = criteria.isSatisfied();
-        }
-        return isSatisfied;
-    }
-
-    /**
-     * Checks whether the given Criteria is satisfied polling at a default
-     * interval.
-     *
-     * @param criteria The Criteria that will be checked.
-     * @return {@code true} if checking has ended with the criteria being
-     *         satisfied.
-     * @throws InterruptedException
-     * @see #pollForCriteria(Criteria, long, long)
-     */
-    public static boolean pollForCriteria(Criteria criteria)
-            throws InterruptedException {
-        return pollForCriteria(criteria, DEFAULT_MAX_TIME_TO_POLL,
-                DEFAULT_POLLING_INTERVAL);
-    }
-
-    /**
-     * Performs the runnable action, then checks whether the given criteria are
-     * satisfied until the specified timeout, using the pollForCriteria method.
-     * If not, then the runnable action is performed again, to a maximum of
-     * maxAttempts tries.
-     */
-    public static boolean runUntilCriteria(Runnable runnable, Criteria criteria,
-            int maxAttempts, long maxTimeoutMs, long checkIntervalMs)
-            throws InterruptedException {
-        int count = 0;
-        boolean success = false;
-        while (count < maxAttempts && !success) {
-            count++;
-            runnable.run();
-            success = pollForCriteria(criteria, maxTimeoutMs, checkIntervalMs);
-        }
-        return success;
-    }
-}