Merge 96007 - IndexedDB: Null key path gets stored as empty string key path

Source/WebCore/storage/IDBLevelDBCoding.cpp

Index: Source/WebCore/storage/IDBLevelDBCoding.cpp
===================================================================
--- Source/WebCore/storage/IDBLevelDBCoding.cpp	(revision 97254)
+++ Source/WebCore/storage/IDBLevelDBCoding.cpp	(working copy)
@@ -70,6 +70,7 @@
 //     <database id, 0, 0, 50, object store id, 3> => is evictable [ObjectStoreMetaDataKey]
 //     <database id, 0, 0, 50, object store id, 4> => last "version" number [ObjectStoreMetaDataKey]
 //     <database id, 0, 0, 50, object store id, 5> => maximum index id ever allocated [ObjectStoreMetaDataKey]
+//     <database id, 0, 0, 50, object store id, 6> => has key path (vs. null) [ObjectStoreMetaDataKey]
 //
 //
 // Index meta-data:
@@ -857,6 +858,11 @@
     return encode(databaseId, INT64_MAX, INT64_MAX);
 }
 
+Vector<char> ObjectStoreMetaDataKey::encodeMaxKey(int64_t databaseId, int64_t objectStoreId)
+{
+    return encode(databaseId, objectStoreId, INT64_MAX);
+}
+
 int64_t ObjectStoreMetaDataKey::objectStoreId() const
 {
     ASSERT(m_objectStoreId >= 0);