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/callback_forward.h"
 #include "base/hash_tables.h"
 #include "base/supports_user_data.h"
@@ skipping 47 matching lines @@
   static DownloadManager* GetDownloadManager(BrowserContext* browser_context);
   static quota::QuotaManager* GetQuotaManager(BrowserContext* browser_context);
   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);
 
-  static content::StoragePartition* GetStoragePartition(
-      BrowserContext* browser_context, SiteInstance* site_instance);
+  static bool IsValidPartitionId(BrowserContext* browser_context,
+                                 const std::string& partition_id);
+  static StoragePartition* GetStoragePartition(BrowserContext* browser_context,
+                                               SiteInstance* site_instance);
+  static StoragePartition* GetStoragePartitionById(
+      BrowserContext* browser_context,
+      const std::string& partition_id);
   static void ForEachStoragePartition(
       BrowserContext* browser_context,
       const StoragePartitionCallback& callback);
 
   // DON'T USE THIS. GetDefaultStoragePartition() is going away.
   // Use GetStoragePartition() instead. Ask ajwong@ if you have problems.
   static content::StoragePartition* GetDefaultStoragePartition(
       BrowserContext* browser_context);
 
   // Ensures that the corresponding ResourceContext is initialized. Normally the
@@ skipping 71 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_