AppCache: Use a dedicated thread for the disk cache.

webkit/appcache/appcache_storage_impl_unittest.cc

 // Copyright (c) 2010 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 <stack>
 
 #include "base/message_loop.h"
 #include "base/thread.h"
 #include "base/waitable_event.h"
 #include "net/base/net_errors.h"
@@ skipping 209 matching lines @@
   void RunTestOnIOThread(Method method) {
     test_finished_event_ .reset(new base::WaitableEvent(false, false));
     io_thread->message_loop()->PostTask(
         FROM_HERE, new WrapperTask<Method>(this, method));
     test_finished_event_->Wait();
   }
 
   void SetUpTest() {
     DCHECK(MessageLoop::current() == io_thread->message_loop());
     service_.reset(new AppCacheService);
-    service_->Initialize(FilePath());
+    service_->Initialize(FilePath(), NULL);
     delegate_.reset(new MockStorageDelegate(this));
   }
 
   void TearDownTest() {
     DCHECK(MessageLoop::current() == io_thread->message_loop());
     storage()->CancelDelegateCallbacks(delegate());
     group_ = NULL;
     cache_ = NULL;
     cache2_ = NULL;
     delegate_.reset();
@@ skipping 818 matching lines @@
 
 }  // namespace appcache
 
 // AppCacheStorageImplTest is expected to always live longer than the
 // runnable methods.  This lets us call NewRunnableMethod on its instances.
 template<>
 struct RunnableMethodTraits<appcache::AppCacheStorageImplTest> {
   void RetainCallee(appcache::AppCacheStorageImplTest* obj) { }
   void ReleaseCallee(appcache::AppCacheStorageImplTest* obj) { }
 };