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

content/child/indexed_db/webidbfactory_impl.cc

Index: content/child/indexed_db/webidbfactory_impl.cc
diff --git a/content/child/indexed_db/webidbfactory_impl.cc b/content/child/indexed_db/webidbfactory_impl.cc
index 1f8e887129cc2d312995b4bbf43ce860ca5fd10f..1897d91db8423d75969cf945bc329e20313cbaf9 100644
--- a/content/child/indexed_db/webidbfactory_impl.cc
+++ b/content/child/indexed_db/webidbfactory_impl.cc
@@ -8,10 +8,12 @@
 #include "content/child/indexed_db/indexed_db_callbacks_impl.h"
 #include "content/child/indexed_db/indexed_db_database_callbacks_impl.h"
 #include "content/child/storage_util.h"
+#include "content/common/indexed_db/indexed_db_data_format_version.h"
 #include "ipc/ipc_sync_channel.h"
 #include "mojo/public/cpp/bindings/strong_associated_binding.h"
 #include "third_party/WebKit/public/platform/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/web/WebSerializedScriptValueVersion.h"
 
 using blink::WebIDBCallbacks;
 using blink::WebIDBDatabase;
@@ -116,8 +118,13 @@ WebIDBFactoryImpl::IOThreadHelper::IOThreadHelper(
 WebIDBFactoryImpl::IOThreadHelper::~IOThreadHelper() {}
 
 FactoryAssociatedPtr& WebIDBFactoryImpl::IOThreadHelper::GetService() {
-  if (!service_)
+  if (!service_) {
     sync_message_filter_->GetRemoteAssociatedInterface(&service_);
+    DCHECK(service_);
+    auto version = blink::WebSerializedScriptValueVersion::current();
+    service_->Configure(
+        IndexedDBDataFormatVersion(version.v8Version, version.blinkVersion));
+  }
   return service_;
 }