Add WebView implementation for CookieManager.

content/public/android/javatests/src/org/chromium/content/browser/CriteriaHelper.java

Index: content/public/android/javatests/src/org/chromium/content/browser/CriteriaHelper.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/CriteriaHelper.java b/content/public/android/javatests/src/org/chromium/content/browser/CriteriaHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..9655361f573aa02b6b796de25fa7c8d91bcbf7d6
--- /dev/null
+++ b/content/public/android/javatests/src/org/chromium/content/browser/CriteriaHelper.java
@@ -0,0 +1,71 @@
+// Copyright (c) 2012 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.content.browser.test;
+
+/**
+ * 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 = 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 true iff 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 = System.currentTimeMillis();
+        while (!isSatisfied && System.currentTimeMillis() - 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 iff 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;
+    }
+}