AppCache: Provide a way to override the default quota for an origin. The inte...

webkit/appcache/appcache_storage.h

 // Copyright (c) 2010 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 WEBKIT_APPCACHE_APPCACHE_STORAGE_H_
 #define WEBKIT_APPCACHE_APPCACHE_STORAGE_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 149 matching lines @@
   virtual void DoomResponses(
       const GURL& manifest_url, const std::vector<int64>& response_ids) = 0;
 
   // Schedules the lazy deletion of responses without persistently saving
   // the response ids.
   virtual void DeleteResponses(
       const GURL& manifest_url, const std::vector<int64>& response_ids) = 0;
 
   virtual void PurgeMemory() = 0;
 
+  // Maintain a collection of quota overrides in memory.
+  void SetOriginQuotaInMemory(const GURL& origin, int64 quota);
+  void ResetOriginQuotaInMemory(const GURL& origin);
+  int64 GetOriginQuotaInMemory(const GURL& origin);
+
   // Generates unique storage ids for different object types.
   int64 NewCacheId() {
     return ++last_cache_id_;
   }
   int64 NewGroupId() {
     return ++last_group_id_;
   }
 
   // The working set of object instances currently in memory.
   AppCacheWorkingSet* working_set() { return &working_set_; }
@@ skipping 97 matching lines @@
     if (iter != pending_info_loads_.end())
       return iter->second;
     return new ResponseInfoLoadTask(manifest_url, response_id, this);
   }
 
   // Should only be called when creating a new response writer.
   int64 NewResponseId() {
     return ++last_response_id_;
   }
 
+  // Store quotas for extensions in memory, in order to prevent writing a row
+  // to quota_table_ every time an extention is loaded.
+  typedef std::map<GURL, int64> QuotaMap;
+  QuotaMap in_memory_quotas_;
+
   // The last storage id used for different object types.
   int64 last_cache_id_;
   int64 last_group_id_;
   int64 last_response_id_;
 
   AppCacheWorkingSet working_set_;
   AppCacheService* service_;
   DelegateReferenceMap delegate_references_;
   PendingResponseInfoLoads pending_info_loads_;
 
   // The set of last ids must be retrieved from storage prior to being used.
   static const int64 kUnitializedId;
 
   FRIEND_TEST_ALL_PREFIXES(AppCacheStorageTest, DelegateReferences);
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheStorage);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_APPCACHE_STORAGE_H_