Port messages sent by WebIDBDatabaseImpl to Mojo.

content/common/indexed_db/indexed_db_struct_traits.cc

Index: content/common/indexed_db/indexed_db_struct_traits.cc
diff --git a/content/common/indexed_db/indexed_db_struct_traits.cc b/content/common/indexed_db/indexed_db_struct_traits.cc
index 1ea67de8b3edab5013d68e61f36741e92b2467f6..d304b0fca01ca16533b41aa0abd07d4a706dd222 100644
--- a/content/common/indexed_db/indexed_db_struct_traits.cc
+++ b/content/common/indexed_db/indexed_db_struct_traits.cc
@@ -8,6 +8,16 @@
 
 namespace mojo {
 
+// static
+bool StructTraits<indexed_db::mojom::IndexKeysDataView,
+                  content::IndexedDBIndexKeys>::
+    Read(indexed_db::mojom::IndexKeysDataView data,
+         content::IndexedDBIndexKeys* out) {
+  out->first = data.index_id();
+  return data.ReadIndexKeys(&out->second);
+}
+
+// static
 bool StructTraits<indexed_db::mojom::IndexMetadataDataView,
                   content::IndexedDBIndexMetadata>::
     Read(indexed_db::mojom::IndexMetadataDataView data,
@@ -22,6 +32,7 @@ bool StructTraits<indexed_db::mojom::IndexMetadataDataView,
   return true;
 }
 
+// static
 bool StructTraits<indexed_db::mojom::ObjectStoreMetadataDataView,
                   content::IndexedDBObjectStoreMetadata>::
     Read(indexed_db::mojom::ObjectStoreMetadataDataView data,
@@ -48,6 +59,7 @@ bool StructTraits<indexed_db::mojom::ObjectStoreMetadataDataView,
   return true;
 }
 
+// static
 bool StructTraits<indexed_db::mojom::DatabaseMetadataDataView,
                   content::IndexedDBDatabaseMetadata>::
     Read(indexed_db::mojom::DatabaseMetadataDataView data,