Convert SafeBrowsingStoreFile to do bulk reads and writes.

chrome/browser/safe_browsing/safe_browsing_store_file.h

 // Copyright (c) 2010 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 CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_STORE_FILE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_STORE_FILE_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 184 matching lines @@
   // Returns the name of the temporary file used to buffer data for
   // |filename|.  Exported for unit tests.
   static const FilePath TemporaryFileForFilename(const FilePath& filename) {
     return FilePath(filename.value() + FILE_PATH_LITERAL("_new"));
   }
 
  private:
   // Close all files and clear all buffers.
   bool Close();
 
-  // Helpers to read/write the various data sets.  Excepting
-  // ReadChunksToSet(), which is called too early, the readers skip
-  // items from deleted chunks (listed in add_del_cache_ and
-  // sub_del_cache_).
-  bool ReadChunksToSet(FILE* fp, std::set<int32>* chunks, int count);
-  bool WriteChunksFromSet(const std::set<int32>& chunks);
-  bool ReadAddPrefixes(FILE* fp,
-                       std::vector<SBAddPrefix>* add_prefixes, int count);
-  bool WriteAddPrefixes(const std::vector<SBAddPrefix>& add_prefixes);
-  bool ReadSubPrefixes(FILE* fp,
-                       std::vector<SBSubPrefix>* sub_prefixes, int count);
-  bool WriteSubPrefixes(std::vector<SBSubPrefix>& sub_prefixes);
-  bool ReadAddHashes(FILE* fp,
-                     std::vector<SBAddFullHash>* add_hashes, int count);
-  bool WriteAddHashes(const std::vector<SBAddFullHash>& add_hashes);
-  bool ReadSubHashes(FILE* fp,
-                     std::vector<SBSubFullHash>* sub_hashes, int count);
-  bool WriteSubHashes(std::vector<SBSubFullHash>& sub_hashes);
-
   // Calls |corruption_callback_| if non-NULL, always returns false as
   // a convenience to the caller.
   bool OnCorruptDatabase();
 
   // Clear temporary buffers used to accumulate chunk data.
   bool ClearChunkBuffers() {
     // NOTE: .clear() doesn't release memory.
     // TODO(shess): Figure out if this is overkill.  Some amount of
     // pre-reserved space is probably reasonable between each chunk
     // collected.
@@ skipping 45 matching lines @@
   // slower than plain set<>.
   base::hash_set<int32> add_del_cache_;
   base::hash_set<int32> sub_del_cache_;
 
   scoped_ptr<Callback0::Type> corruption_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingStoreFile);
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_STORE_FILE_H_