Improve TransportSecurityState data storage.

chrome/browser/net/transport_security_persister.h

 // 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.
 
 // TransportSecurityState maintains an in memory database containing the
 // list of hosts that currently have transport security enabled. This
 // singleton object deals with writing that data out to disk as needed and
 // loading it at startup.
 
 // At startup we need to load the transport security state from the
@@ skipping 67 matching lines @@
   //         legacy key synonym "bad_preloaded_spki_hashes"
   //     "dynamic_spki_hashes": list of strings
   //
   // The JSON dictionary keys are strings containing
   // Base64(SHA256(net::TransportSecurityState::CanonicalizeHost(domain))).
   // The reason for hashing them is so that the stored state does not
   // trivially reveal a user's browsing history to an attacker reading the
   // serialized state on disk.
   virtual bool SerializeData(std::string* data) OVERRIDE;
 
-  // Parses an array of JSON-encoded TransportSecurityState::DomainState
-  // entries. For use in loading entries defined on the command line
-  // (switches::kHstsHosts).
-  bool DeserializeFromCommandLine(const std::string& serialized);
-
   // Clears any existing non-static entries, and then re-populates
   // |transport_security_state_|.
   //
   // Sets |*dirty| to true if the new state differs from the persisted
   // state; false otherwise.
   bool LoadEntries(const std::string& serialized, bool* dirty);
 
  private:
   class Loader;
 
@@ skipping 18 matching lines @@
 
   // Whether or not we're in read-only mode.
   const bool readonly_;
 
   base::WeakPtrFactory<TransportSecurityPersister> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportSecurityPersister);
 };
 
 #endif  // CHROME_BROWSER_NET_TRANSPORT_SECURITY_PERSISTER_H_