Chromium glue for Preemptive cursors and passing keys from renderer to browser

content/common/indexed_db/indexed_db_dispatcher.cc

 // Copyright (c) 2012 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/common/indexed_db/indexed_db_dispatcher.h"
 
 #include "base/lazy_instance.h"
 #include "base/threading/thread_local.h"
 #include "content/common/child_thread.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
@@ skipping 465 matching lines @@
   int32 response_id = pending_callbacks_.Add(callbacks.release());
   Send(new IndexedDBHostMsg_ObjectStoreClear(
       idb_object_store_id, CurrentWorkerId(), response_id,
       TransactionId(transaction), ec));
   if (*ec)
     pending_callbacks_.Remove(response_id);
 }
 
 void IndexedDBDispatcher::RequestIDBObjectStoreOpenCursor(
     const WebIDBKeyRange& idb_key_range,
-    unsigned short direction,
+    WebKit::WebIDBCursor::Direction direction,
     WebIDBCallbacks* callbacks_ptr,
     int32 idb_object_store_id,
+    WebKit::WebIDBTransaction::TaskType task_type,
     const WebIDBTransaction& transaction,
     WebExceptionCode* ec) {
   ResetCursorPrefetchCaches();
   scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr);
   IndexedDBHostMsg_ObjectStoreOpenCursor_Params params;
   params.thread_id = CurrentWorkerId();
   params.response_id = pending_callbacks_.Add(callbacks.release());
   params.key_range = IndexedDBKeyRange(idb_key_range);
   params.direction = direction;
   params.idb_object_store_id = idb_object_store_id;
+  params.task_type = task_type;
   params.transaction_id = TransactionId(transaction);
   Send(new IndexedDBHostMsg_ObjectStoreOpenCursor(params, ec));
   if (*ec)
     pending_callbacks_.Remove(params.response_id);
 }
 
 void IndexedDBDispatcher::RequestIDBObjectStoreCount(
     const WebIDBKeyRange& idb_key_range,
     WebIDBCallbacks* callbacks_ptr,
     int32 idb_object_store_id,
@@ skipping 260 matching lines @@
 }
 
 void IndexedDBDispatcher::ResetCursorPrefetchCaches(int32 exception_cursor_id) {
   typedef std::map<int32, RendererWebIDBCursorImpl*>::iterator Iterator;
   for (Iterator i = cursors_.begin(); i != cursors_.end(); ++i) {
     if (i->first == exception_cursor_id)
       continue;
     i->second->ResetPrefetchCache();
   }
 }