Use a two-part data format version in IndexedDB metadata.

content/browser/indexed_db/indexed_db_unittest.cc

Index: content/browser/indexed_db/indexed_db_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_unittest.cc b/content/browser/indexed_db/indexed_db_unittest.cc
index ddf9854d2e81507071e9073f7ca697869421171c..7d8a2522eb08ae47352ccb19bbe6003c73561fae 100644
--- a/content/browser/indexed_db/indexed_db_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_unittest.cc
@@ -190,14 +190,14 @@ TEST_F(IndexedDBTest, ForceCloseOpenDatabasesOnDelete) {
             0 /* host_transaction_id */, 0 /* version */));
     factory->Open(base::ASCIIToUTF16("opendb"), std::move(open_connection),
                   nullptr /* request_context */, Origin(kTestOrigin),
-                  idb_context->data_path());
+                  idb_context->data_path(), IndexedDBDataFormatVersion());
     std::unique_ptr<IndexedDBPendingConnection> closed_connection(
         base::MakeUnique<IndexedDBPendingConnection>(
             closed_callbacks, closed_db_callbacks, 0 /* child_process_id */,
             0 /* host_transaction_id */, 0 /* version */));
     factory->Open(base::ASCIIToUTF16("closeddb"), std::move(closed_connection),
                   nullptr /* request_context */, Origin(kTestOrigin),
-                  idb_context->data_path());
+                  idb_context->data_path(), IndexedDBDataFormatVersion());
 
     closed_callbacks->connection()->Close();
 
@@ -269,7 +269,7 @@ TEST_F(IndexedDBTest, ForceCloseOpenDatabasesOnCommitFailure) {
           IndexedDBDatabaseMetadata::DEFAULT_VERSION));
   factory->Open(base::ASCIIToUTF16("db"), std::move(connection),
                 nullptr /* request_context */, Origin(kTestOrigin),
-                temp_dir.GetPath());
+                temp_dir.GetPath(), IndexedDBDataFormatVersion());
 
   EXPECT_TRUE(callbacks->connection());