IndexedDB: Implement explicit queue for IDBOpenDBRequests

content/browser/indexed_db/indexed_db_database_unittest.cc

 // Copyright 2013 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/indexed_db/indexed_db_database.h"
 
 #include <stdint.h>
 #include <set>
 #include <utility>
 
@@ skipping 176 matching lines @@
 
   scoped_refptr<MockIndexedDBCallbacks> request1(new MockIndexedDBCallbacks());
   scoped_refptr<MockIndexedDBDatabaseCallbacks> callbacks1(
       new MockIndexedDBDatabaseCallbacks());
   const int64_t transaction_id1 = 1;
   IndexedDBPendingConnection connection(
       request1, callbacks1, kFakeChildProcessId, transaction_id1,
       IndexedDBDatabaseMetadata::DEFAULT_VERSION);
   db->OpenConnection(connection);
 
+  EXPECT_EQ(db->ConnectionCount(), 1UL);
+  EXPECT_EQ(db->ActiveOpenDeleteCount(), 0UL);
+  EXPECT_EQ(db->PendingOpenDeleteCount(), 0UL);
   EXPECT_FALSE(backing_store->HasOneRef());  // local and db
 
   scoped_refptr<MockDeleteCallbacks> request2(new MockDeleteCallbacks());
   db->DeleteDatabase(request2);
+  EXPECT_EQ(db->ConnectionCount(), 1UL);
+  EXPECT_EQ(db->ActiveOpenDeleteCount(), 1UL);
+  EXPECT_EQ(db->PendingOpenDeleteCount(), 0UL);
 
   EXPECT_FALSE(request2->blocked_called());
   db->VersionChangeIgnored();
   EXPECT_TRUE(request2->blocked_called());
+  EXPECT_EQ(db->ConnectionCount(), 1UL);
+  EXPECT_EQ(db->ActiveOpenDeleteCount(), 1UL);
+  EXPECT_EQ(db->PendingOpenDeleteCount(), 0UL);
 
   EXPECT_FALSE(backing_store->HasOneRef());  // local and db
 
   db->Close(request1->connection(), true /* forced */);
+  EXPECT_EQ(db->ConnectionCount(), 0UL);
+  EXPECT_EQ(db->ActiveOpenDeleteCount(), 0UL);
+  EXPECT_EQ(db->PendingOpenDeleteCount(), 0UL);
 
   EXPECT_FALSE(db->backing_store());
   EXPECT_TRUE(backing_store->HasOneRef());  // local
   EXPECT_TRUE(request2->success_called());
 }
 
 void DummyOperation(IndexedDBTransaction* transaction) {
 }
 
 class IndexedDBDatabaseOperationTest : public testing::Test {
@@ skipping 174 matching lines @@
   EXPECT_EQ(1ULL, db_->metadata().object_stores.size());
 
   // This will execute the Put then Delete.
   RunPostedTasks();
   EXPECT_EQ(0ULL, db_->metadata().object_stores.size());
 
   transaction_->Commit();  // Cleans up the object hierarchy.
 }
 
 }  // namespace content