Remove partial blockfile v3 disk_cache implementation.

net/disk_cache/blockfile/rankings.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 "net/disk_cache/blockfile/rankings.h"
 
 #include <stdint.h>
 
 #include <limits>
 
@@ skipping 524 matching lines @@
     return false;
 
   if ((node->address().value() == data->next) && !IsTail(data->next, &list))
     return false;
 
   if (!data->next && !data->prev)
     return true;
 
   Addr next_addr(data->next);
   Addr prev_addr(data->prev);
-  if (!next_addr.SanityCheckV2() || next_addr.file_type() != RANKINGS ||
-      !prev_addr.SanityCheckV2() || prev_addr.file_type() != RANKINGS)
+  if (!next_addr.SanityCheck() || next_addr.file_type() != RANKINGS ||
+      !prev_addr.SanityCheck() || prev_addr.file_type() != RANKINGS)
     return false;
 
   return true;
 }
 
 bool Rankings::DataSanityCheck(CacheRankingsBlock* node, bool from_list) const {
   const RankingsNode* data = node->Data();
   if (!data->contents)
     return false;
 
@@ skipping 363 matching lines @@
 void Rankings::DecrementCounter(List list) {
   if (!count_lists_)
     return;
 
   DCHECK(control_data_->sizes[list] > 0);
   if (control_data_->sizes[list] > 0)
     control_data_->sizes[list]--;
 }
 
 }  // namespace disk_cache