IPC plumbing for IndexedDB to snapshot metadata to the renderer.

content/browser/in_process_webkit/indexed_db_dispatcher_host.h

Index: content/browser/in_process_webkit/indexed_db_dispatcher_host.h
diff --git a/content/browser/in_process_webkit/indexed_db_dispatcher_host.h b/content/browser/in_process_webkit/indexed_db_dispatcher_host.h
index 84475c6d59c46a7752a375242af002c6a7a60d0f..26a78da30bf8dcda8d401a5175db41bf867a904b 100644
--- a/content/browser/in_process_webkit/indexed_db_dispatcher_host.h
+++ b/content/browser/in_process_webkit/indexed_db_dispatcher_host.h
@@ -15,6 +15,7 @@
 
 class GURL;
 class IndexedDBContextImpl;
+struct IndexedDBDatabaseMetadata;
 struct IndexedDBHostMsg_DatabaseCreateObjectStore_Params;
 struct IndexedDBHostMsg_FactoryDeleteDatabase_Params;
 struct IndexedDBHostMsg_FactoryGetDatabaseNames_Params;
@@ -33,6 +34,9 @@ class WebIDBDatabase;
 class WebIDBIndex;
 class WebIDBObjectStore;
 class WebIDBTransaction;
+struct WebIDBDatabaseMetadata;
+struct WebIDBIndexMetadata;
+struct WebIDBObjectStoreMetadata;
 }
 
 namespace content {
@@ -115,6 +119,8 @@ class IndexedDBDispatcherHost : public content::BrowserMessageFilter {
     bool OnMessageReceived(const IPC::Message& message, bool *msg_is_ok);
     void Send(IPC::Message* message);
 
+    void OnMetadata(int32 idb_database_id,
+                    IndexedDBDatabaseMetadata* metadata);
     void OnName(int32 idb_database_id, string16* name);
     void OnVersion(int32 idb_database_id, string16* version);
     void OnObjectStoreNames(int32 idb_database_id,