Move code to clear web databases on shutdown to the database tracker

webkit/support/simple_database_system.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 "webkit/support/simple_database_system.h"
 
 #include "base/auto_reset.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
@@ skipping 18 matching lines @@
   return instance_;
 }
 
 SimpleDatabaseSystem::SimpleDatabaseSystem()
     : db_thread_("SimpleDBThread"),
       quota_per_origin_(5 * 1024 * 1024),
       open_connections_(new webkit_database::DatabaseConnectionsWrapper) {
   DCHECK(!instance_);
   instance_ = this;
   CHECK(temp_dir_.CreateUniqueTempDir());
-  db_tracker_ = new DatabaseTracker(temp_dir_.path(), false, NULL, NULL, NULL);
+  db_tracker_ =
+      new DatabaseTracker(temp_dir_.path(), false, false, NULL, NULL, NULL);
   db_tracker_->AddObserver(this);
   db_thread_.Start();
   db_thread_proxy_ = db_thread_.message_loop_proxy();
 }
 
 SimpleDatabaseSystem::~SimpleDatabaseSystem() {
   base::WaitableEvent done_event(false, false);
   db_thread_proxy_->PostTask(FROM_HERE,
       NewRunnableMethod(this, &SimpleDatabaseSystem::ThreadCleanup,
                         &done_event));
@@ skipping 231 matching lines @@
   file_util::Delete(db_tracker_->DatabaseDirectory(), true);
 }
 
 void SimpleDatabaseSystem::ThreadCleanup(base::WaitableEvent* done_event) {
   ResetTracker();
   db_tracker_->RemoveObserver(this);
   db_tracker_ = NULL;
   done_event->Signal();
 }