IndexedDB: Cursor pre-fetching.

content/browser/in_process_webkit/indexed_db_callbacks.cc

 // 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.
 
 #include "content/browser/in_process_webkit/indexed_db_callbacks.h"
 
 #include "content/common/indexed_db_messages.h"
 #include "webkit/quota/quota_manager.h"
 
 IndexedDBCallbacksBase::IndexedDBCallbacksBase(
@@ skipping 41 matching lines @@
 
   dispatcher_host()->Send(
       new IndexedDBMsg_CallbacksSuccessCursorContinue(
           response_id(),
           cursor_id_,
           IndexedDBKey(idb_cursor->key()),
           IndexedDBKey(idb_cursor->primaryKey()),
           content::SerializedScriptValue(idb_cursor->value())));
 }
 
+void IndexedDBCallbacks<WebKit::WebIDBCursor>::onSuccessWithPrefetch(
+    const WebKit::WebVector<WebKit::WebIDBKey>& keys,
+    const WebKit::WebVector<WebKit::WebIDBKey>& primaryKeys,
+    const WebKit::WebVector<WebKit::WebSerializedScriptValue>& values) {
+  DCHECK(cursor_id_ != -1);
+
+  std::vector<IndexedDBKey> msgKeys;
+  std::vector<IndexedDBKey> msgPrimaryKeys;
+  std::vector<content::SerializedScriptValue> msgValues;
+
+  for (size_t i = 0; i < keys.size(); ++i) {
+    msgKeys.push_back(IndexedDBKey(keys[i]));
+    msgPrimaryKeys.push_back(IndexedDBKey(primaryKeys[i]));
+    msgValues.push_back(content::SerializedScriptValue(values[i]));
+  }
+
+  dispatcher_host()->Send(
+      new IndexedDBMsg_CallbacksSuccessCursorPrefetch(
+          response_id(),
+          cursor_id_,
+          msgKeys,
+          msgPrimaryKeys,
+          msgValues));
+}
+
 void IndexedDBCallbacks<WebKit::WebIDBKey>::onSuccess(
     const WebKit::WebIDBKey& value) {
   dispatcher_host()->Send(
       new IndexedDBMsg_CallbacksSuccessIndexedDBKey(
           response_id(), IndexedDBKey(value)));
 }
 
 void IndexedDBCallbacks<WebKit::WebDOMStringList>::onSuccess(
     const WebKit::WebDOMStringList& value) {
 
   std::vector<string16> list;
   for (unsigned i = 0; i < value.length(); ++i)
       list.push_back(value.item(i));
 
   dispatcher_host()->Send(
       new IndexedDBMsg_CallbacksSuccessStringList(
           response_id(), list));
 }
 
 void IndexedDBCallbacks<WebKit::WebSerializedScriptValue>::onSuccess(
     const WebKit::WebSerializedScriptValue& value) {
   dispatcher_host()->Send(
       new IndexedDBMsg_CallbacksSuccessSerializedScriptValue(
           response_id(), content::SerializedScriptValue(value)));
 }