Disk cache: remove the hard coded list from rankings.cc...

net/disk_cache/addr.h

 // 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.
 
 // This is an internal class that handles the address of a cache record.
 // See net/disk_cache/disk_cache.h for the public interface of the cache.
 
 #ifndef NET_DISK_CACHE_ADDR_H__
 #define NET_DISK_CACHE_ADDR_H__
 
@@ skipping 32 matching lines @@
 // If separate file:
 //   0000 1111 1111 1111 1111 1111 1111 1111 : file#  0 - 268,435,456 (2^28)
 //
 // If block file:
 //   0000 1100 0000 0000 0000 0000 0000 0000 : reserved bits
 //   0000 0011 0000 0000 0000 0000 0000 0000 : number of contiguous blocks 1-4
 //   0000 0000 1111 1111 0000 0000 0000 0000 : file selector 0 - 255
 //   0000 0000 0000 0000 1111 1111 1111 1111 : block#  0 - 65,535 (2^16)
 class Addr {
  public:
+  Addr() : value_(0) {}
   explicit Addr(CacheAddr address) : value_(address) {}
   Addr(FileType file_type, int max_blocks, int block_file, int index) {
     value_ = ((file_type << kFileTypeOffset) & kFileTypeMask) |
              (((max_blocks - 1) << kNumBlocksOffset) & kNumBlocksMask) |
              ((block_file << kFileSelectorOffset) & kFileSelectorMask) |
              (index  & kStartBlockMask) | kInitializedMask;
   }
 
   CacheAddr value() const { return value_; }
   void set_value(CacheAddr address) {
@@ skipping 82 matching lines @@
   static const uint32 kStartBlockMask     = 0x0000FFFF;
   static const uint32 kFileNameMask       = 0x0FFFFFFF;
 
   CacheAddr value_;
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_ADDR_H__