IndexedDB: Cursor pre-fetching.

content/browser/in_process_webkit/indexed_db_dispatcher_host.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
@@ skipping 220 matching lines @@
     void OnValue(int32 idb_object_store_id,
                  content::SerializedScriptValue* script_value);
     void OnUpdate(int32 idb_object_store_id,
                   int32 response_id,
                   const content::SerializedScriptValue& value,
                   WebKit::WebExceptionCode* ec);
     void OnContinue(int32 idb_object_store_id,
                     int32 response_id,
                     const IndexedDBKey& key,
                     WebKit::WebExceptionCode* ec);
+    void OnPrefetch(int32 idb_cursor_id,
+                    int32 response_id,
+                    int n,
+                    WebKit::WebExceptionCode* ec);
+    void OnPrefetchReset(int32 idb_cursor_id, int used_prefetches,
+                         int unused_prefetches);
     void OnDelete(int32 idb_object_store_id,
                   int32 response_id,
                   WebKit::WebExceptionCode* ec);
     void OnDestroyed(int32 idb_cursor_id);
 
     IndexedDBDispatcherHost* parent_;
     IDMap<WebKit::WebIDBCursor, IDMapOwnPointer> map_;
   };
 
   class TransactionDispatcherHost {
@@ skipping 31 matching lines @@
   scoped_ptr<CursorDispatcherHost> cursor_dispatcher_host_;
   scoped_ptr<TransactionDispatcherHost> transaction_dispatcher_host_;
 
   // Used to dispatch messages to the correct view host.
   int process_id_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBDispatcherHost);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_