Split the RequestPicker task into two separate tasks.

components/offline_pages/background/offliner_policy_utils.cc

Index: components/offline_pages/background/offliner_policy_utils.cc
diff --git a/components/offline_pages/background/offliner_policy_utils.cc b/components/offline_pages/background/offliner_policy_utils.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e9cfc1279a7df82a07c6d53489cc56a6d8e294bf
--- /dev/null
+++ b/components/offline_pages/background/offliner_policy_utils.cc
@@ -0,0 +1,34 @@
+// Copyright 2016 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.
+
+#include "components/offline_pages/background/offliner_policy_utils.h"
+
+#include "components/offline_pages/background/offliner_policy.h"
+#include "components/offline_pages/background/save_page_request.h"
+
+namespace offline_pages {
+
+// static function to check request expiration or cleanup status.
+OfflinerPolicyUtils::RequestExpirationStatus
+OfflinerPolicyUtils::CheckRequestExpirationStatus(
+    const SavePageRequest* request,
+    const OfflinerPolicy* policy) {
+  DCHECK(request);
+  DCHECK(policy);
+
+  if (base::Time::Now() - request->creation_time() >=
+      base::TimeDelta::FromSeconds(
+          policy->GetRequestExpirationTimeInSeconds())) {
+    return RequestExpirationStatus::EXPIRED;
+  }
+  if (request->started_attempt_count() >= policy->GetMaxStartedTries())
+    return RequestExpirationStatus::START_COUNT_EXCEEDED;
+
+  if (request->completed_attempt_count() >= policy->GetMaxCompletedTries())
+    return RequestExpirationStatus::COMPLETION_COUNT_EXCEEDED;
+
+  return RequestExpirationStatus::VALID;
+}
+
+}  // namespace offline_pages