IndexedDB: Implement IPC plumbing for IDBObjectStore.delete(IDBKeyRange)

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 405 matching lines @@
   scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr);
 
   int32 response_id = pending_callbacks_.Add(callbacks.release());
   Send(new IndexedDBHostMsg_ObjectStoreDelete(
       idb_object_store_id, CurrentWorkerId(), response_id, key,
       TransactionId(transaction), ec));
   if (*ec)
     pending_callbacks_.Remove(response_id);
 }
 
+void IndexedDBDispatcher::RequestIDBObjectStoreDeleteRange(
+    const IndexedDBKeyRange& key_range,
+    WebIDBCallbacks* callbacks_ptr,
+    int32 idb_object_store_id,
+    const WebIDBTransaction& transaction,
+    WebExceptionCode* ec) {
+  ResetCursorPrefetchCaches();
+  scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr);
+
+  int32 response_id = pending_callbacks_.Add(callbacks.release());
+  Send(new IndexedDBHostMsg_ObjectStoreDeleteRange(
+      idb_object_store_id, CurrentWorkerId(), response_id, key_range,
+      TransactionId(transaction), ec));
+  if (*ec)
+    pending_callbacks_.Remove(response_id);
+}
+
 void IndexedDBDispatcher::RequestIDBObjectStoreClear(
     WebIDBCallbacks* callbacks_ptr,
     int32 idb_object_store_id,
     const WebIDBTransaction& transaction,
     WebExceptionCode* ec) {
   ResetCursorPrefetchCaches();
   scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr);
 
   int32 response_id = pending_callbacks_.Add(callbacks.release());
   Send(new IndexedDBHostMsg_ObjectStoreClear(
@@ skipping 236 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();
   }
 }