Make ServerBoundCertStore interface async, move SQLiteServerBoundCertStore load onto DB thread.

chrome/browser/net/sqlite_server_bound_cert_store.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.
 
 #ifndef CHROME_BROWSER_NET_SQLITE_SERVER_BOUND_CERT_STORE_H_
 #define CHROME_BROWSER_NET_SQLITE_SERVER_BOUND_CERT_STORE_H_
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 10 matching lines @@
 // closed to decide which certificates to keep.
 class SQLiteServerBoundCertStore
     : public net::DefaultServerBoundCertStore::PersistentStore {
  public:
   // If non-NULL, SQLiteServerBoundCertStore will keep a scoped_refptr to the
   // |clear_on_exit_policy| throughout its lifetime.
   SQLiteServerBoundCertStore(const FilePath& path,
                              ClearOnExitPolicy* clear_on_exit_policy);
 
   // net::DefaultServerBoundCertStore::PersistentStore:
-  virtual bool Load(
-      std::vector<net::DefaultServerBoundCertStore::ServerBoundCert*>* certs)
-          OVERRIDE;
+  virtual void Load(const LoadedCallback& loaded_callback) OVERRIDE;
   virtual void AddServerBoundCert(
       const net::DefaultServerBoundCertStore::ServerBoundCert& cert) OVERRIDE;
   virtual void DeleteServerBoundCert(
       const net::DefaultServerBoundCertStore::ServerBoundCert& cert) OVERRIDE;
   virtual void SetForceKeepSessionState() OVERRIDE;
   virtual void Flush(const base::Closure& completion_task) OVERRIDE;
 
  protected:
   virtual ~SQLiteServerBoundCertStore();
 
  private:
   class Backend;
 
   scoped_refptr<Backend> backend_;
 
   DISALLOW_COPY_AND_ASSIGN(SQLiteServerBoundCertStore);
 };
 
 #endif  // CHROME_BROWSER_NET_SQLITE_SERVER_BOUND_CERT_STORE_H_