Persist sessionStorage on disk.

chrome/browser/profiles/profile.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.
 
 // This class gathers state related to a single user profile.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_H_
 #pragma once
 
@@ skipping 134 matching lines @@
   // Returns the profile corresponding to the given WebUI.
   static Profile* FromWebUI(content::WebUI* web_ui);
 
   // TODO(rlp): Please do not use this function. It is a temporary fix
   // for M19 stable. See crbug.com/125292.
   static net::URLRequestContextGetter* GetDefaultRequestContextDeprecated() {
     return Profile::GetDefaultRequestContext();
   }
 
   // content::BrowserContext implementation ------------------------------------
+  virtual bool ShouldSaveSessionStorageOnDisk() OVERRIDE;
 
   // Typesafe upcast.
   virtual TestingProfile* AsTestingProfile();
 
   // Returns the name associated with this profile. This name is displayed in
   // the browser frame.
   virtual std::string GetProfileName() = 0;
 
   // Return the incognito version of this profile. The returned pointer
   // is owned by the receiving profile. If the receiving profile is off the
@@ skipping 281 matching lines @@
 struct hash<Profile*> {
   std::size_t operator()(Profile* const& p) const {
     return reinterpret_cast<std::size_t>(p);
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 #endif
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_H_