Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/TiclExponentialBackoffDelayGenerator.java

Index: third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/TiclExponentialBackoffDelayGenerator.java
diff --git a/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/TiclExponentialBackoffDelayGenerator.java b/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/TiclExponentialBackoffDelayGenerator.java
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index 0000000000000000000000000000000000000000..fd6d826a88b424f29ec854e61ebe87c2fe942652
--- /dev/null
+++ b/third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/TiclExponentialBackoffDelayGenerator.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.ipc.invalidation.ticl;
+
+import com.google.ipc.invalidation.ticl.proto.Client.ExponentialBackoffState;
+import com.google.ipc.invalidation.util.ExponentialBackoffDelayGenerator;
+import com.google.ipc.invalidation.util.Marshallable;
+
+import java.util.Random;
+
+/**
+ * A subclass of {@link ExponentialBackoffDelayGenerator} that supports (un)marshalling to and from
+ * protocol buffers.
+ *
+ */
+public class TiclExponentialBackoffDelayGenerator
+    extends ExponentialBackoffDelayGenerator implements Marshallable<ExponentialBackoffState> {
+
+  /**
+   * Creates an exponential backoff delay generator. Parameters  are as in
+   * {@link ExponentialBackoffDelayGenerator#ExponentialBackoffDelayGenerator(Random, int, int)}.
+   */
+  public TiclExponentialBackoffDelayGenerator(Random random, int initialMaxDelay,
+      int maxExponentialFactor) {
+    super(random, initialMaxDelay, maxExponentialFactor);
+  }
+
+  /**
+   * Restores a generator from {@code marshalledState}. Other parameters are as in
+   * {@link ExponentialBackoffDelayGenerator#ExponentialBackoffDelayGenerator(Random, int, int)}.
+   *
+   * @param marshalledState marshalled state from which to restore.
+   */
+  public TiclExponentialBackoffDelayGenerator(Random random, int initialMaxDelay,
+      int maxExponentialFactor, ExponentialBackoffState marshalledState) {
+    super(random, initialMaxDelay, maxExponentialFactor, marshalledState.getCurrentMaxDelay(),
+        marshalledState.getInRetryMode());
+  }
+
+  @Override
+  public ExponentialBackoffState marshal() {
+    return ExponentialBackoffState.create(getCurrentMaxDelay(), getInRetryMode());
+  }
+}