Disk cache: Add support for an extra data stream for each cache entry....

net/disk_cache/backend_impl.cc

 // Copyright (c) 2006-2008 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 "net/disk_cache/backend_impl.h"
 
 #include "base/file_util.h"
 #include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
@@ skipping 522 matching lines @@
 
 bool BackendImpl::CreateBlock(FileType block_type, int block_count,
                              Addr* block_address) {
   return block_files_.CreateBlock(block_type, block_count, block_address);
 }
 
 void BackendImpl::DeleteBlock(Addr block_address, bool deep) {
   block_files_.DeleteBlock(block_address, deep);
 }
 
+LruData* BackendImpl::GetLruData() {
+  return &data_->header.lru;
+}
+
 void BackendImpl::UpdateRank(CacheRankingsBlock* node, bool modified) {
   if (!read_only_)
     rankings_.UpdateRank(node, modified);
 }
 
 void BackendImpl::RecoveredEntry(CacheRankingsBlock* rankings) {
   Addr address(rankings->Data()->contents);
   EntryImpl* cache_entry = NULL;
   bool dirty;
   if (NewEntry(address, &cache_entry, &dirty))
@@ skipping 590 matching lines @@
 
   return num_dirty;
 }
 
 bool BackendImpl::CheckEntry(EntryImpl* cache_entry) {
   RankingsNode* rankings = cache_entry->rankings()->Data();
   return !rankings->pointer;
 }
 
 }  // namespace disk_cache