Move SessionStorageNamespace entirely into NavigationController and support StoragePartitions.

content/public/browser/content_browser_client.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_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 256 matching lines @@
   // Child processes that have different storage partition identifiers will
   // behave as if they belong to different web browsers and not be able to
   // access each other's cookies, local storage, etc.  IDs must only fit the
   // pattern [a-z0-9]* (lowercase letters or digits).
   //
   // Returns the empty string for the regular storage partition.
   virtual std::string GetStoragePartitionIdForChildProcess(
       content::BrowserContext* browser_context,
       int child_process_id);
 
+  // Same as GetStoragePartitionIdForChildProcess(), but uses a SiteInstance
+  // instead.
+  //
+  // TODO(ajwong): Replace all uses of GetStoragePartitionIdForChildProcess()
+  // with this one.
+  virtual std::string GetStoragePartitionIdForSiteInstance(
+      content::BrowserContext* browser_context,
+      content::SiteInstance* instance);
+
+  // Allows the embedder to provide a validation check for |partition_id|s.
+  // This domain of valid entries should match the range of outputs for
+  // GetStoragePartitionIdForChildProcess().
+  virtual bool IsValidStoragePartitionId(BrowserContext* browser_context,
+                                         const std::string& partition_id);
+
   // Create and return a new quota permission context.
   virtual QuotaPermissionContext* CreateQuotaPermissionContext();
 
   // Open the given file in the desktop's default manner.
   virtual void OpenItem(const FilePath& path) {}
 
   // Show the given file in a file manager. If possible, select the file.
   virtual void ShowItemInFolder(const FilePath& path) {}
 
   // Informs the embedder that a certificate error has occured.  If
@@ skipping 159 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_