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

webkit/appcache/appcache_storage.h

Index: webkit/appcache/appcache_storage.h
===================================================================
--- webkit/appcache/appcache_storage.h	(revision 54804)
+++ webkit/appcache/appcache_storage.h	(working copy)
@@ -167,6 +167,11 @@
 
   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_;
@@ -284,6 +289,11 @@
     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_;