Make iterating over a corrupted IndexedDB fail.

content/browser/indexed_db/indexed_db_backing_store.h

 // Copyright (c) 2013 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_BACKING_STORE_H_
 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_BACKING_STORE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 79 matching lines @@
   static scoped_refptr<IndexedDBBackingStore> OpenInMemory(
       const GURL& origin_url,
       base::TaskRunner* task_runner);
   static scoped_refptr<IndexedDBBackingStore> OpenInMemory(
       const GURL& origin_url,
       LevelDBFactory* level_db_factory,
       base::TaskRunner* task_runner);
 
   // Compact is public for testing.
   virtual void Compact();
-  virtual std::vector<base::string16> GetDatabaseNames();
+  virtual std::vector<base::string16> GetDatabaseNames(leveldb::Status*);
   virtual leveldb::Status GetIDBDatabaseMetaData(
       const base::string16& name,
       IndexedDBDatabaseMetadata* metadata,
       bool* success) WARN_UNUSED_RESULT;
   virtual leveldb::Status CreateIDBDatabaseMetaData(
       const base::string16& name,
       const base::string16& version,
       int64 int_version,
       int64* row_id);
   virtual bool UpdateIDBDatabaseIntVersion(
@@ skipping 142 matching lines @@
       int64 index_id;
       std::string low_key;
       bool low_open;
       std::string high_key;
       bool high_open;
       bool forward;
       bool unique;
     };
 
     const IndexedDBKey& key() const { return *current_key_; }
-    bool Continue() { return Continue(NULL, NULL, SEEK); }
-    bool Continue(const IndexedDBKey* key, IteratorState state) {
-      return Continue(key, NULL, state);
+    bool Continue(leveldb::Status* s) { return Continue(NULL, NULL, SEEK, s); }
+    bool Continue(const IndexedDBKey* key,
+                  IteratorState state,
+                  leveldb::Status* s) {
+      return Continue(key, NULL, state, s);
     }
     bool Continue(const IndexedDBKey* key,
                   const IndexedDBKey* primary_key,
-                  IteratorState state);
-    bool Advance(uint32 count);
-    bool FirstSeek();
+                  IteratorState state,
+                  leveldb::Status*);
+    bool Advance(uint32 count, leveldb::Status*);
+    bool FirstSeek(leveldb::Status*);
 
     virtual Cursor* Clone() = 0;
     virtual const IndexedDBKey& primary_key() const;
     virtual IndexedDBValue* value() = 0;
     virtual const RecordIdentifier& record_identifier() const;
     virtual bool LoadCurrentRow() = 0;
 
    protected:
     Cursor(LevelDBTransaction* transaction,
            const CursorOptions& cursor_options);
@@ skipping 11 matching lines @@
     scoped_ptr<LevelDBIterator> iterator_;
     scoped_ptr<IndexedDBKey> current_key_;
     IndexedDBBackingStore::RecordIdentifier record_identifier_;
   };
 
   virtual scoped_ptr<Cursor> OpenObjectStoreKeyCursor(
       IndexedDBBackingStore::Transaction* transaction,
       int64 database_id,
       int64 object_store_id,
       const IndexedDBKeyRange& key_range,
-      indexed_db::CursorDirection);
+      indexed_db::CursorDirection,
+      leveldb::Status*);
   virtual scoped_ptr<Cursor> OpenObjectStoreCursor(
       IndexedDBBackingStore::Transaction* transaction,
       int64 database_id,
       int64 object_store_id,
       const IndexedDBKeyRange& key_range,
-      indexed_db::CursorDirection);
+      indexed_db::CursorDirection,
+      leveldb::Status*);
   virtual scoped_ptr<Cursor> OpenIndexKeyCursor(
       IndexedDBBackingStore::Transaction* transaction,
       int64 database_id,
       int64 object_store_id,
       int64 index_id,
       const IndexedDBKeyRange& key_range,
-      indexed_db::CursorDirection);
+      indexed_db::CursorDirection,
+      leveldb::Status*);
   virtual scoped_ptr<Cursor> OpenIndexCursor(
       IndexedDBBackingStore::Transaction* transaction,
       int64 database_id,
       int64 object_store_id,
       int64 index_id,
       const IndexedDBKeyRange& key_range,
-      indexed_db::CursorDirection);
+      indexed_db::CursorDirection,
+      leveldb::Status*);
 
   class Transaction {
    public:
     explicit Transaction(IndexedDBBackingStore* backing_store);
     virtual ~Transaction();
     virtual void Begin();
     virtual leveldb::Status Commit();
     virtual void Rollback();
     void Reset() {
       backing_store_ = NULL;
@@ skipping 57 matching lines @@
   scoped_ptr<LevelDBComparator> comparator_;
   // Whenever blobs are registered in active_blob_registry_, indexed_db_factory_
   // will hold a reference to this backing store.
   IndexedDBActiveBlobRegistry active_blob_registry_;
   base::OneShotTimer<IndexedDBBackingStore> close_timer_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_BACKING_STORE_H_