AppCache: Provide a way to override the default quota for an origin. The intent is to use this to support the 'unlimited_storage' privilege of Chrome Applications.

BUG=49993
TEST=AppCacheStorageImplTest.FailStoreGroup

Review URL: http://codereview.chromium.org/3083014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54949 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/webkit/appcache/appcache_storage.h b/webkit/appcache/appcache_storage.h
index 9b6596c..559237c 100644
--- a/webkit/appcache/appcache_storage.h
+++ b/webkit/appcache/appcache_storage.h
@@ -167,6 +167,11 @@ class AppCacheStorage {
 
   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 @@ class AppCacheStorage {
     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_;