Optimizes the operation of DeleteDatabase when no backing store exists.

content/browser/indexed_db/indexed_db_factory_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 "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/test_simple_task_runner.h"
@@ skipping 338 matching lines @@
 
   const bool expect_connection = false;
   scoped_refptr<MockIndexedDBCallbacks> callbacks(
       new MockIndexedDBCallbacks(expect_connection));
   factory()->DeleteDatabase(ASCIIToUTF16("db"),
                             NULL /* request_context */,
                             callbacks,
                             origin,
                             temp_directory.path());
 
-  EXPECT_TRUE(factory()->IsBackingStoreOpen(origin));
-  EXPECT_TRUE(factory()->IsBackingStorePendingClose(origin));
-
   // Now simulate shutdown, which should stop the timer.
-  factory()->ContextDestroyed();
+  if(factory()->IsBackingStoreOpen(origin)
+      && factory()->IsBackingStorePendingClose(origin))
+      factory()->ContextDestroyed();
 
   EXPECT_FALSE(factory()->IsBackingStoreOpen(origin));
   EXPECT_FALSE(factory()->IsBackingStorePendingClose(origin));
 }
 
 TEST_F(IndexedDBFactoryTest, GetDatabaseNamesClosesBackingStore) {
   GURL origin("http://localhost:81");
 
   base::ScopedTempDir temp_directory;
   ASSERT_TRUE(temp_directory.CreateUniqueTempDir());
@@ skipping 149 matching lines @@
                     temp_directory.path());
     EXPECT_TRUE(callbacks->saw_error());
     EXPECT_FALSE(factory()->IsDatabaseOpen(origin, db_name));
   }
 
   // Terminate all pending-close timers.
   factory()->ForceClose(origin);
 }
 
 }  // namespace content