IPC plumbing for IndexedDB to snapshot metadata to the renderer.

content/browser/in_process_webkit/indexed_db_dispatcher_host.cc

Index: content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
diff --git a/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc b/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
index 1f5112509ef6803422e23de14ff2fd322e4095d8..73980a577066035109797b661f8d9732881182f0 100644
--- a/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
+++ b/content/browser/in_process_webkit/indexed_db_dispatcher_host.cc
@@ -35,6 +35,7 @@
 
 using content::BrowserMessageFilter;
 using content::BrowserThread;
+using content::IndexedDBDatabaseMetadata;
 using content::IndexedDBKey;
 using content::IndexedDBKeyPath;
 using content::IndexedDBKeyRange;
@@ -324,6 +325,7 @@ bool IndexedDBDispatcherHost::DatabaseDispatcherHost::OnMessageReceived(
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(IndexedDBDispatcherHost::DatabaseDispatcherHost,
                            message, *msg_is_ok)
+    IPC_MESSAGE_HANDLER(IndexedDBHostMsg_DatabaseMetadata, OnMetadata)
     IPC_MESSAGE_HANDLER(IndexedDBHostMsg_DatabaseName, OnName)
     IPC_MESSAGE_HANDLER(IndexedDBHostMsg_DatabaseVersion, OnVersion)
     IPC_MESSAGE_HANDLER(IndexedDBHostMsg_DatabaseObjectStoreNames,
@@ -347,6 +349,16 @@ void IndexedDBDispatcherHost::DatabaseDispatcherHost::Send(
   parent_->Send(message);
 }
 
+void IndexedDBDispatcherHost::DatabaseDispatcherHost::OnMetadata(
+    int32 object_id, content::IndexedDBDatabaseMetadata* metadata) {
+  WebIDBDatabase* idb_database = parent_->GetOrTerminateProcess(
+      &map_, object_id);
+  if (!idb_database)
+    return;
+
+  *metadata = IndexedDBDatabaseMetadata(idb_database->metadata());
+}
+
 void IndexedDBDispatcherHost::DatabaseDispatcherHost::OnName(
     int32 object_id, string16* name) {
   parent_->SyncGetter<string16>(&map_, object_id, name, &WebIDBDatabase::name);