ServiceWorker: Remove unnecessary accessors for uncommitted/purgeable resources

content/browser/service_worker/service_worker_database.h

Index: content/browser/service_worker/service_worker_database.h
diff --git a/content/browser/service_worker/service_worker_database.h b/content/browser/service_worker/service_worker_database.h
index 8dd0b623eac0fcdb2b411aee2e36aad9b3c36de8..6b7dea0d3b83aa9b5ab2e1433850c72296471539 100644
--- a/content/browser/service_worker/service_worker_database.h
+++ b/content/browser/service_worker/service_worker_database.h
@@ -200,39 +200,34 @@ class CONTENT_EXPORT ServiceWorkerDatabase {
       const std::string& user_data_name,
       std::vector<std::pair<int64, std::string>>* user_data);
 
-  // As new resources are put into the diskcache, they go into an uncommitted
-  // list. When a registration is saved that refers to those ids, they're
-  // removed from that list. When a resource no longer has any registrations or
+  // Resources should belong to one of following resource lists: uncommitted,
+  // committed and purgeable.
+  // As new resources are put into the diskcache, they go into the uncommitted
+  // list. When a registration is saved that refers to those ids, they're moved
+  // to the committed list. When a resource no longer has any registrations or
   // caches referring to it, it's added to the purgeable list. Periodically,
   // the purgeable list can be purged from the diskcache. At system startup, all
   // uncommitted ids are moved to the purgeable list.
 
-  // Reads uncommitted resource ids from the database. Returns OK on success.
+  // Reads resource ids from the uncommitted list. Returns OK on success.
   // Otherwise clears |ids| and returns an error.
   Status GetUncommittedResourceIds(std::set<int64>* ids);
 
-  // Writes |ids| into the database as uncommitted resources. Returns OK on
-  // success. Otherwise writes nothing and returns an error.
+  // Writes resource ids into the uncommitted list. Returns OK on success.
+  // Otherwise writes nothing and returns an error.
   Status WriteUncommittedResourceIds(const std::set<int64>& ids);
 
-  // Deletes uncommitted resource ids specified by |ids| from the database.
-  // Returns OK on success. Otherwise deletes nothing and returns an error.
-  Status ClearUncommittedResourceIds(const std::set<int64>& ids);
-
-  // Reads purgeable resource ids from the database. Returns OK on success.
+  // Reads resource ids from the purgeable list. Returns OK on success.
   // Otherwise clears |ids| and returns an error.
   Status GetPurgeableResourceIds(std::set<int64>* ids);
 
-  // Writes |ids| into the database as purgeable resources. Returns OK on
-  // success. Otherwise writes nothing and returns an error.
-  Status WritePurgeableResourceIds(const std::set<int64>& ids);
-
-  // Deletes purgeable resource ids specified by |ids| from the database.
-  // Returns OK on success. Otherwise deletes nothing and returns an error.
+  // Deletes resource ids from the purgeable list. Returns OK on success.
+  // Otherwise deletes nothing and returns an error.
   Status ClearPurgeableResourceIds(const std::set<int64>& ids);
 
-  // Moves |ids| from the uncommitted list to the purgeable list.
-  // Returns OK on success. Otherwise deletes nothing and returns an error.
+  // Writes resource ids into the purgeable list and removes them from the
+  // uncommitted list. Returns OK on success. Otherwise writes nothing and
+  // returns an error.
   Status PurgeUncommittedResourceIds(const std::set<int64>& ids);
 
   // Deletes all data for |origins|, namely, unique origin, registrations and
@@ -300,9 +295,6 @@ class CONTENT_EXPORT ServiceWorkerDatabase {
 
   // Write resource ids for |id_key_prefix| into the database. Returns OK on
   // success. Otherwise, returns writes nothing and returns an error.
-  Status WriteResourceIds(
-      const char* id_key_prefix,
-      const std::set<int64>& ids);
   Status WriteResourceIdsInBatch(
       const char* id_key_prefix,
       const std::set<int64>& ids,
@@ -311,9 +303,6 @@ class CONTENT_EXPORT ServiceWorkerDatabase {
   // Deletes resource ids for |id_key_prefix| from the database. Returns OK if
   // it's successfully deleted or not found in the database. Otherwise, returns
   // an error.
-  Status DeleteResourceIds(
-      const char* id_key_prefix,
-      const std::set<int64>& ids);
   Status DeleteResourceIdsInBatch(
       const char* id_key_prefix,
       const std::set<int64>& ids,