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

content/common/indexed_db/indexed_db_struct_traits.cc

 // Copyright 2016 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.
 
 #include "content/common/indexed_db/indexed_db_struct_traits.h"
 
 #include "base/stl_util.h"
 #include "mojo/common/common_custom_types_struct_traits.h"
 
 using content::IndexedDBKey;
@@ skipping 228 matching lines @@
     DCHECK(!base::ContainsKey(out->object_stores, object_store.id()));
     if (!StructTraits<indexed_db::mojom::ObjectStoreMetadataDataView,
                       content::IndexedDBObjectStoreMetadata>::
             Read(object_store, &out->object_stores[object_store.id()]))
       return false;
   }
   return true;
 }
 
 // static
+bool StructTraits<indexed_db::mojom::DataFormatVersionDataView,
+                  content::IndexedDBDataFormatVersion>::
+    Read(indexed_db::mojom::DataFormatVersionDataView data,
+         content::IndexedDBDataFormatVersion* out) {
+  *out = content::IndexedDBDataFormatVersion(data.v8_version(),
+                                             data.blink_version());
+  return true;
+};

[cmumford, 2017/04/03 16:55:02]

Delete semicolon.

[jbroman, 2017/04/04 18:50:38]

Done.

+
+// static
 CursorDirection
 EnumTraits<CursorDirection, blink::WebIDBCursorDirection>::ToMojom(
     blink::WebIDBCursorDirection input) {
   switch (input) {
     case blink::WebIDBCursorDirectionNext:
       return CursorDirection::Next;
     case blink::WebIDBCursorDirectionNextNoDuplicate:
       return CursorDirection::NextNoDuplicate;
     case blink::WebIDBCursorDirectionPrev:
       return CursorDirection::Prev;
@@ skipping 182 matching lines @@
     case TransactionMode::ReadWrite:
       *output = blink::WebIDBTransactionModeReadWrite;
       return true;
     case TransactionMode::VersionChange:
       *output = blink::WebIDBTransactionModeVersionChange;
       return true;
   }
   return false;
 }
 }  // namespace mojo