QUIC - Start the process for reading crypto config data from disk cache

net/quic/crypto/quic_crypto_client_config.h

Index: net/quic/crypto/quic_crypto_client_config.h
diff --git a/net/quic/crypto/quic_crypto_client_config.h b/net/quic/crypto/quic_crypto_client_config.h
index a7c58804c128e2f70a465446e469465770b91d69..735cbece3421ea108e8ae4a6ba143c40969609ef 100644
--- a/net/quic/crypto/quic_crypto_client_config.h
+++ b/net/quic/crypto/quic_crypto_client_config.h
@@ -31,6 +31,7 @@ class NET_EXPORT_PRIVATE QuicCryptoClientConfig : public QuicCryptoConfig {
   class NET_EXPORT_PRIVATE CachedState {
    public:
     CachedState();
+    explicit CachedState(scoped_ptr<QuicServerInfo> quic_server_info);
     ~CachedState();
 
     // IsComplete returns true if this object contains enough information to
@@ -89,11 +90,6 @@ class NET_EXPORT_PRIVATE QuicCryptoClientConfig : public QuicCryptoConfig {
     // unchanged.
     void InitializeFrom(const CachedState& other);
 
-    // TODO(rtenneti): Need to flesh out the details of this method. A temporary
-    // place holder to load CachedState from disk cache.
-    void LoadFromDiskCache(QuicServerInfoFactory* quic_server_info_factory,
-                           const std::string& server_hostname);
-
    private:
     std::string server_config_id_;      // An opaque id from the server.
     std::string server_config_;         // A serialized handshake message.
@@ -114,21 +110,29 @@ class NET_EXPORT_PRIVATE QuicCryptoClientConfig : public QuicCryptoConfig {
     // scfg contains the cached, parsed value of |server_config|.
     mutable scoped_ptr<CryptoHandshakeMessage> scfg_;
 
+    // |quic_server_info_| is used to fetch crypto config information from disk.
     scoped_ptr<QuicServerInfo> quic_server_info_;
 
     DISALLOW_COPY_AND_ASSIGN(CachedState);
   };
 
   QuicCryptoClientConfig();
-  explicit QuicCryptoClientConfig(
-      QuicServerInfoFactory* quic_server_info_factory);
   ~QuicCryptoClientConfig();
 
   // Sets the members to reasonable, default values.
   void SetDefaults();
 
+  // Create returns a CachedState for the given hostname. It creates a
+  // CachedState and caches it. If |quic_server_info_factory| is not NULL, then
+  // it is used to create QuicServerInfo which is used to fetch crypto config
+  // information from disk for the given hostname.
+  CachedState* Create(const std::string& server_hostname,
+                      QuicServerInfoFactory* quic_server_info_factory);
+
   // LookupOrCreate returns a CachedState for the given hostname. If no such
   // CachedState currently exists, it will be created and cached.
+  // TODO(rtenneti): fix the server code and pass QuicServerInfoFactory as
+  // argument.
   CachedState* LookupOrCreate(const std::string& server_hostname);
 
   // FillInchoateClientHello sets |out| to be a CHLO message that elicits a
@@ -219,7 +223,6 @@ class NET_EXPORT_PRIVATE QuicCryptoClientConfig : public QuicCryptoConfig {
   // about that server.
   std::map<std::string, CachedState*> cached_states_;
 
-  QuicServerInfoFactory* quic_server_info_factory_;
   scoped_ptr<ProofVerifier> proof_verifier_;
   scoped_ptr<ChannelIDSigner> channel_id_signer_;