Make SDCH dictionaries persistent across browser restart.

chrome/browser/profiles/profile_impl_io_data.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_PROFILES_PROFILE_IMPL_IO_DATA_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IMPL_IO_DATA_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
+#include "base/prefs/pref_store.h"
+#include "base/timer/timer.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/net/chrome_url_request_context_getter.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "content/public/browser/cookie_store_factory.h"
 
+class JsonPrefStore;
+
 namespace chrome_browser_net {
 class Predictor;
 }  // namespace chrome_browser_net
 
 namespace content {
 class CookieCryptoDelegate;
 }  // namespace content
 
 namespace data_reduction_proxy {
 class DataReductionProxyNetworkDelegate;
@@ skipping 10 matching lines @@
 class HttpTransactionFactory;
 class ProxyConfig;
 class SdchManager;
 class SdchOwner;
 }  // namespace net
 
 namespace storage {
 class SpecialStoragePolicy;
 }  // namespace storage
 
-class ProfileImplIOData : public ProfileIOData {
+class ProfileImplIOData : public ProfileIOData, public PrefStore::Observer {
  public:
   class Handle {
    public:
     explicit Handle(Profile* profile);
     ~Handle();
 
     // Init() must be called before ~Handle(). It records most of the
     // parameters needed to construct a ChromeURLRequestContextGetter.
     void Init(
         const base::FilePath& cookie_path,
@@ skipping 144 matching lines @@
       net::URLRequestContext* app_context,
       const StoragePartitionDescriptor& partition_descriptor) const override;
 
   // Deletes all network related data since |time|. It deletes transport
   // security state since |time| and also deletes HttpServerProperties data.
   // Works asynchronously, however if the |completion| callback is non-null,
   // it will be posted on the UI thread once the removal process completes.
   void ClearNetworkingHistorySinceOnIOThread(base::Time time,
                                              const base::Closure& completion);
 
+  void FlushPrefsToDisk();
+
+  // PrefStore::Observer
+  void OnPrefValueChanged(const std::string& key) override;
+  void OnInitializationCompleted(bool succeeded) override;
+
   mutable scoped_ptr<data_reduction_proxy::DataReductionProxyNetworkDelegate>
        network_delegate_;
 
   // Lazy initialization params.
   mutable scoped_ptr<LazyParams> lazy_params_;
 
+  mutable scoped_refptr<JsonPrefStore> network_json_store_;
+  base::Timer network_store_commit_timer_;
+
   mutable scoped_ptr<net::HttpTransactionFactory> main_http_factory_;
   mutable scoped_ptr<net::FtpTransactionFactory> ftp_factory_;
 
   // Same as |ProfileIOData::http_server_properties_|, owned there to maintain
   // destruction ordering.
   mutable net::HttpServerPropertiesManager* http_server_properties_manager_;
 
   mutable scoped_ptr<chrome_browser_net::Predictor> predictor_;
 
   mutable scoped_ptr<net::URLRequestContext> media_request_context_;
 
   mutable scoped_ptr<net::URLRequestJobFactory> main_job_factory_;
   mutable scoped_ptr<net::URLRequestJobFactory> extensions_job_factory_;
 
   mutable scoped_ptr<domain_reliability::DomainReliabilityMonitor>
       domain_reliability_monitor_;
 
   mutable scoped_ptr<net::SdchManager> sdch_manager_;
   mutable scoped_ptr<net::SdchOwner> sdch_policy_;
 
   // Parameters needed for isolated apps.
   base::FilePath profile_path_;
   int app_cache_max_size_;
   int app_media_cache_max_size_;
 
+  base::WeakPtrFactory<ProfileImplIOData> factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileImplIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IMPL_IO_DATA_H_