IndexedDB: Fixed support for empty blobs.

content/browser/indexed_db/indexed_db_context_impl.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONTEXT_IMPL_H_
 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONTEXT_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 83 matching lines @@
   // GetStoragePaths returns all paths owned by this database, in arbitrary
   // order.
   std::vector<base::FilePath> GetStoragePaths(const GURL& origin_url) const;
 
   base::FilePath data_path() const { return data_path_; }
   bool IsInOriginSet(const GURL& origin_url) {
     std::set<GURL>* set = GetOriginSet();
     return set->find(origin_url) != set->end();
   }
   size_t GetConnectionCount(const GURL& origin_url);
+  int GetOriginBlobFileCount(const GURL& origin_url);
 
   // For unit tests allow to override the |data_path_|.
   void set_data_path_for_testing(const base::FilePath& data_path) {
     data_path_ = data_path;
   }
 
   bool is_incognito() const { return data_path_.empty(); }
 
  protected:
   ~IndexedDBContextImpl() override;
@@ skipping 42 matching lines @@
   scoped_ptr<std::set<GURL> > origin_set_;
   OriginToSizeMap origin_size_map_;
   OriginToSizeMap space_available_map_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBContextImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CONTEXT_IMPL_H_