Drive: Removes unused cache files after the initial feed fetch.

chrome/browser/chromeos/gdata/gdata_file_system.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/gdata/gdata_file_system.h"
 
 #include <set>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/platform_file.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/gdata/drive_api_parser.h"
 #include "chrome/browser/chromeos/gdata/drive_webapps_registry.h"
 #include "chrome/browser/chromeos/gdata/gdata.pb.h"
 #include "chrome/browser/chromeos/gdata/gdata_documents_service.h"
 #include "chrome/browser/chromeos/gdata/gdata_download_observer.h"
 #include "chrome/browser/chromeos/gdata/gdata_protocol_handler.h"
 #include "chrome/browser/chromeos/gdata/gdata_system_service.h"
 #include "chrome/browser/chromeos/gdata/gdata_util.h"
+#include "chrome/browser/chromeos/gdata/stale_cache_files_remover.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "net/base/mime_util.h"
 
 using content::BrowserThread;
 
@@ skipping 2772 matching lines @@
     const FindEntryCallback& callback,
     GDataFileError error,
     GDataEntry* entry) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (!callback.is_null())
     callback.Run(error, entry);
 
   DVLOG(1) << "RunAndNotifyInitialLoadFinished";
 
+  // Removes stale cache files. This will delete itself after removing stale
+  // cache files.
+  StaleCacheFilesRemover* remover = new StaleCacheFilesRemover(this, cache_);
+  remover->ScrubCacheAfterDelay();

[satorux1, 2012/08/10 23:47:40]

I think "scrub" is not a popular verb in code. Let's just call it Start();

+
   // Notify the observers that root directory has been initialized.
   FOR_EACH_OBSERVER(GDataFileSystemInterface::Observer, observers_,
                     OnInitialLoadFinished());
 }
 
 GDataFileError GDataFileSystem::AddNewDirectory(
     const FilePath& directory_path, base::Value* entry_value) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (!entry_value)
@@ skipping 637 matching lines @@
   }
 
   PlatformFileInfoProto entry_file_info;
   GDataEntry::ConvertPlatformFileInfoToProto(*file_info, &entry_file_info);
   *entry_proto->mutable_file_info() = entry_file_info;
   if (!callback.is_null())
     callback.Run(GDATA_FILE_OK, entry_proto.Pass());
 }
 
 }  // namespace gdata