Adding session-only localStorage.

content/browser/content_browser_client.h

 // Copyright (c) 2011 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_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 130 matching lines @@
                               const std::string& cookie_line,
                               const content::ResourceContext& context,
                               int render_process_id,
                               int render_view_id,
                               net::CookieOptions* options) = 0;
 
   // This is called on the IO thread.
   virtual bool AllowSaveLocalState(
       const content::ResourceContext& context) = 0;
 
+  // Allow the embedder to restrict the given url to use only session-only
+  // storage.
+  virtual bool EnforceSessionOnlyStorage(
+      const GURL& url,
+      const GURL& first_party,
+      const content::ResourceContext& context) = 0;
+
   // Allows the embedder to override the request context based on the URL for
   // certain operations, like cookie access. Returns NULL to indicate the
   // regular request context should be used.
   // This is called on the IO thread.
   virtual net::URLRequestContext* OverrideRequestContextForURL(
       const GURL& url, const content::ResourceContext& context) = 0;
 
   // Create and return a new quota permission context.
   virtual QuotaPermissionContext* CreateQuotaPermissionContext() = 0;
 
@@ skipping 115 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CONTENT_BROWSER_CLIENT_H_