Add WebView implementation for CookieManager.

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

+// Copyright (c) 2011 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;
+
+import org.chromium.content.browser.ContentView;
+
+import java.lang.reflect.Field;
+
+
+/**
+ * Helper methods for creating and managing criteria.
+ */
+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;
+
+     /**

[Yaron, 2012/09/05 06:10:43]

indentation looks off

[Ted C, 2012/09/05 18:45:35]

Done.

+     * 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;
+    }
+
+    public static class NotZoomingCriteria implements Criteria {

[Yaron, 2012/09/05 06:10:43]

How re-used is this? Seems like it doesn't really belong here (especially given
the content view abuse below)

[Ted C, 2012/09/05 18:45:35]

Removed as it isn't used yet.

+        private ContentView mContentView;
+        private float mCurrentMagnifyScale;
+
+        public NotZoomingCriteria(ContentView chromeView) {
+            mContentView = chromeView;
+        }
+
+        @Override
+        public boolean isSatisfied() {
+            float lastMagnifyScale = mCurrentMagnifyScale;
+            try {
+                mCurrentMagnifyScale = getMagnifyScale();
+            } catch (Exception e) {
+                return false;
+            }
+            return lastMagnifyScale != 0 && lastMagnifyScale == mCurrentMagnifyScale;
+        }
+
+        private float getMagnifyScale() throws NoSuchFieldException,
+                IllegalArgumentException, IllegalAccessException {
+            Field field;
+            field = ContentView.class.getDeclaredField("mMagnifyScale");
+            field.setAccessible(true);
+            return field.getFloat(mContentView);
+        }
+    }
+}