Persist sessionStorage on disk.

content/public/browser/browser_context.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 CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 #pragma once
 
 #include "base/hash_tables.h"
 #include "base/supports_user_data.h"
@@ skipping 55 matching lines @@
   // that the ResourceContext is ready.
   static void EnsureResourceContextInitialized(BrowserContext* browser_context);
 
   // Tells the HTML5 objects on this context to persist their session state
   // across the next restart.
   static void SaveSessionState(BrowserContext* browser_context);
 
   // Tells the HTML5 objects on this context to purge any uneeded memory.
   static void PurgeMemory(BrowserContext* browser_context);
 
+  BrowserContext();
   virtual ~BrowserContext();
 
   // Returns the path of the directory where this context's data is stored.
   virtual FilePath GetPath() = 0;
 
   // Return whether this context is incognito. Default is false.
   // This doesn't belong here; http://crbug.com/89628
   virtual bool IsOffTheRecord() const = 0;
 
   // Returns the request context information associated with this context.  Call
@@ skipping 30 matching lines @@
   // ref counted class, so callers should take a reference if needed. It's valid
   // to return NULL.
   virtual SpeechRecognitionPreferences* GetSpeechRecognitionPreferences() = 0;
 
   // Returns true if the last time this context was open it was exited cleanly.
   // This doesn't belong here; http://crbug.com/90737
   virtual bool DidLastSessionExitCleanly() = 0;
 
   // Returns a special storage policy implementation, or NULL.
   virtual quota::SpecialStoragePolicy* GetSpecialStoragePolicy() = 0;
+
+  // Controls if sessionStorage should be saved on disk. This function must be
+  // called before any of the services are requested (see static getters
+  // above). Even if |save_session_storage_on_disk| is true, sessionStorage
+  // won't be saved if |IsOffTheRecord| returns true.
+  void SetSaveSessionStorageOnDisk(bool save_session_storage_on_disk);
+
+  bool save_session_storage_on_disk() const {
+    return save_session_storage_on_disk_;
+  }
+
+private:
+  bool save_session_storage_on_disk_;
 };
 
 }  // namespace content
 
 #if defined(COMPILER_GCC)
 namespace BASE_HASH_NAMESPACE {
 
 template<>
 struct hash<content::BrowserContext*> {
   std::size_t operator()(content::BrowserContext* const& p) const {
     return reinterpret_cast<std::size_t>(p);
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 #endif
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_