AppCache: Use a dedicated thread for the disk cache.

webkit/appcache/appcache_service.h

 // Copyright (c) 2009 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.
 
 #ifndef WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
 #define WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
 
 #include <set>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 #include "webkit/appcache/appcache_storage.h"
 
 class URLRequestContext;
 
+namespace base {
+class MessageLoopProxy;
+}
+
 namespace appcache {
 
 class AppCacheBackendImpl;
 class AppCachePolicy;
 
 // Structure that contains basic info about an appcache.
 struct AppCacheInfo {
   AppCacheInfo() {}
   AppCacheInfo(const GURL& manifest_url,
                int64 size,
@@ skipping 23 matching lines @@
 };
 
 // Class that manages the application cache service. Sends notifications
 // to many frontends.  One instance per user-profile. Each instance has
 // exclusive access to it's cache_directory on disk.
 class AppCacheService {
  public:
   AppCacheService();
   virtual ~AppCacheService();
 
-  void Initialize(const FilePath& cache_directory);
+  void Initialize(const FilePath& cache_directory,
+                  base::MessageLoopProxy* cache_thread);
 
   // Purges any memory not needed.
   void PurgeMemory() {
     if (storage_.get())
       storage_->PurgeMemory();
   }
 
   // Populates 'collection' with info about all of the appcaches stored
   // within the service, 'callback' is invoked upon completion. The service
   // acquires a reference to the 'collection' until until completion.
@@ skipping 59 matching lines @@
   URLRequestContext* request_context_;
 
   // TODO(jennb): service state: e.g. reached quota?
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheService);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_APPCACHE_SERVICE_H_