Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/google/cacheinvalidation/deps/random.h

Index: third_party/cacheinvalidation/src/google/cacheinvalidation/deps/random.h
diff --git a/third_party/cacheinvalidation/src/google/cacheinvalidation/deps/random.h b/third_party/cacheinvalidation/src/google/cacheinvalidation/deps/random.h
new file mode 100644
index 0000000000000000000000000000000000000000..3d3d67da53fbea9c9e278f9c4cdceb82ed5a9ddc
--- /dev/null
+++ b/third_party/cacheinvalidation/src/google/cacheinvalidation/deps/random.h
@@ -0,0 +1,36 @@
+// Copyright 2012 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.
+
+#ifndef GOOGLE_CACHEINVALIDATION_DEPS_RANDOM_H_
+#define GOOGLE_CACHEINVALIDATION_DEPS_RANDOM_H_
+
+#error This file should be replaced with an implementation of the following \
+  interface.
+
+namespace invalidation {
+
+class Random {
+ public:
+  explicit Random(int64 seed);
+
+  // Returns a pseudorandom value between 0 (inclusive) and 1 (exclusive).
+  virtual double RandDouble();
+
+  // Returns a pseudorandom unsigned 64-bit number.
+  virtual uint64 RandUint64();
+};
+
+}  // namespace invalidation
+
+#endif  // GOOGLE_CACHEINVALIDATION_DEPS_RANDOM_H_