Revert of Remove the code to store and load QUIC server configs in the disk cache.

net/quic/chromium/properties_based_quic_server_info.h

 // Copyright 2015 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 NET_QUIC_CHROMIUM_PROPERTIES_BASED_QUIC_SERVER_INFO_H_
 #define NET_QUIC_CHROMIUM_PROPERTIES_BASED_QUIC_SERVER_INFO_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 12 matching lines @@
 // HttpServerProperties. Since the information is defined to be non-sensitive,
 // it's ok for us to keep it on disk.
 class QUIC_EXPORT_PRIVATE PropertiesBasedQuicServerInfo
     : public QuicServerInfo {
  public:
   PropertiesBasedQuicServerInfo(const QuicServerId& server_id,
                                 HttpServerProperties* http_server_properties);
   ~PropertiesBasedQuicServerInfo() override;
 
   // QuicServerInfo implementation.
-  bool Load() override;
+  void Start() override;
+  int WaitForDataReady(const CompletionCallback& callback) override;
+  void ResetWaitForDataReadyCallback() override;
+  void CancelWaitForDataReadyCallback() override;
+  bool IsDataReady() override;
+  bool IsReadyToPersist() override;
   void Persist() override;
+  void OnExternalCacheHit() override;
   size_t EstimateMemoryUsage() const override;
 
  private:
   HttpServerProperties* http_server_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(PropertiesBasedQuicServerInfo);
 };
 
+class QUIC_EXPORT_PRIVATE PropertiesBasedQuicServerInfoFactory
+    : public QuicServerInfoFactory {
+ public:
+  explicit PropertiesBasedQuicServerInfoFactory(
+      HttpServerProperties* http_server_properties);
+  ~PropertiesBasedQuicServerInfoFactory() override;
+
+  std::unique_ptr<QuicServerInfo> GetForServer(
+      const QuicServerId& server_id) override;
+
+ private:
+  HttpServerProperties* http_server_properties_;
+
+  DISALLOW_COPY_AND_ASSIGN(PropertiesBasedQuicServerInfoFactory);
+};
+
 }  // namespace net
 
 #endif  // NET_QUIC_CHROMIUM_PROPERTIES_BASED_QUIC_SERVER_INFO_H_