[Offline Pages] Adds new policy bits and reverse lookup.

components/offline_pages/offline_page_client_policy.h

 // 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.
 
 #ifndef COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_CLIENT_POLICY_H_
 #define COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_CLIENT_POLICY_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 31 matching lines @@
   LifetimePolicy(LifetimeType init_lifetime_type, size_t init_page_limit)
       : lifetime_type(init_lifetime_type),
         expiration_period(base::TimeDelta::FromDays(0)),
         page_limit(init_page_limit){};
 };
 
 // The struct describing feature set of the offline pages.
 struct FeaturePolicy {
   // Whether pages are shown in download ui.
   bool is_supported_by_download;
+  // Whether pages are shown in recent tabs ui.
+  bool is_supported_by_recent_tabs;
+  // Whether pages should only be viewed in the tab they were generated in.
+  bool only_shown_in_original_tab;
   // Whether pages are removed on user-initiated cache reset. Defaults to true.
   bool is_removed_on_cache_reset;
 
   FeaturePolicy()
-      : is_supported_by_download(false), is_removed_on_cache_reset(true){};
+      : is_supported_by_download(false),
+        is_supported_by_recent_tabs(false),
+        only_shown_in_original_tab(false),
+        is_removed_on_cache_reset(true){};
 };
 
 // The struct describing policies for various namespaces (Bookmark, Last-N etc.)
 // used by offline page model. The name_space is supposed to be key, so that
 // it's sufficient to compare name_space only when doing comparisons.
 struct OfflinePageClientPolicy {
   // Namespace to which the policy applied.
   std::string name_space;
 
   // Policy to control the lifetime of a page generated by this namespace.
@@ skipping 44 matching lines @@
     policy_.lifetime_policy.expiration_period = expire_period;
     return *this;
   }
 
   OfflinePageClientPolicyBuilder& SetIsSupportedByDownload(
       const bool is_downloaded) {
     policy_.feature_policy.is_supported_by_download = is_downloaded;
     return *this;
   }
 
+  OfflinePageClientPolicyBuilder& SetIsSupportedByRecentTabs(
+      const bool is_recent_tabs) {
+    policy_.feature_policy.is_supported_by_recent_tabs = is_recent_tabs;
+    return *this;
+  }
+
   OfflinePageClientPolicyBuilder& SetIsRemovedOnCacheReset(
       const bool removed_on_cache_reset) {
     policy_.feature_policy.is_removed_on_cache_reset = removed_on_cache_reset;
     return *this;
   }
 
+  OfflinePageClientPolicyBuilder& SetIsOnlyShownInOriginalTab(
+      const bool only_shown_in_original_tab) {
+    policy_.feature_policy.only_shown_in_original_tab =
+        only_shown_in_original_tab;
+    return *this;
+  }
+
  private:
   OfflinePageClientPolicy policy_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageClientPolicyBuilder);
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_CLIENT_POLICY_H_