Make session restore understand that tabs have multiple SessionStorageNamespaces.

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_
 
 #include "base/hash_tables.h"
 #include "base/supports_user_data.h"
 #include "content/common/content_export.h"
@@ skipping 45 matching lines @@
   static content::DOMStorageContext* GetDOMStorageContextByPartitionId(
       BrowserContext* browser_context, const std::string& partition_id);
   static IndexedDBContext* GetIndexedDBContext(BrowserContext* browser_context);
   static webkit_database::DatabaseTracker* GetDatabaseTracker(
       BrowserContext* browser_context);
   static appcache::AppCacheService* GetAppCacheService(
       BrowserContext* browser_context);
   static fileapi::FileSystemContext* GetFileSystemContext(
       BrowserContext* browser_context);
 
+  // TODO(ajwong): Make StoragePartition a public interface and move this
+  // function over there:
+  static bool IsValidStoragePartitionId(BrowserContext* browser_context,
+                                        const std::string& partition_id);
+
   // Ensures that the corresponding ResourceContext is initialized. Normally the
   // BrowserContext initializs the corresponding getters when its objects are
   // created, but if the embedder wants to pass the ResourceContext to another
   // thread before they use BrowserContext, they should call this to make sure
   // 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);
@@ skipping 62 matching lines @@
 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_