Implement cloud policy invalidations using the invalidation service framework.

chrome/browser/policy/cloud/mock_cloud_policy_client.h

Index: chrome/browser/policy/cloud/mock_cloud_policy_client.h
diff --git a/chrome/browser/policy/cloud/mock_cloud_policy_client.h b/chrome/browser/policy/cloud/mock_cloud_policy_client.h
index e19e4f98bc799310ab1996d84c9c1df8ff464e23..db9aca9bb0bdf52ebd5ebe5095dc570c480679b3 100644
--- a/chrome/browser/policy/cloud/mock_cloud_policy_client.h
+++ b/chrome/browser/policy/cloud/mock_cloud_policy_client.h
@@ -50,6 +50,9 @@ class MockCloudPolicyClient : public CloudPolicyClient {
   using CloudPolicyClient::public_key_version_;
   using CloudPolicyClient::public_key_version_valid_;
   using CloudPolicyClient::namespaces_to_fetch_;
+  using CloudPolicyClient::invalidation_version_;
+  using CloudPolicyClient::invalidation_payload_;
+  using CloudPolicyClient::fetched_invalidation_version_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockCloudPolicyClient);