Introduce all the plumbing for Session Storage. This mostly consists of crea...

chrome/browser/renderer_host/render_view_host_factory.h

 // Copyright (c) 2009 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 CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
 
 #include "base/basictypes.h"
 
 class RenderViewHost;
 class RenderViewHostDelegate;
 class SiteInstance;
 
 namespace base {
 class WaitableEvent;
 }  // namespace base
 
 // A factory for creating RenderViewHosts. There is a global factory function
 // that can be installed for the purposes of testing to provide a specialized
 // RenderViewHost class.
 class RenderViewHostFactory {
  public:
   // Creates a RenderViewHost using the currently registered factory, or the
   // default one if no factory is registered. Ownership of the returned
   // pointer will be passed to the caller.
   static RenderViewHost* Create(SiteInstance* instance,
                                 RenderViewHostDelegate* delegate,
-                                int routing_id);
+                                int routing_id,
+                                int64 session_storage_namespace_id);
 
   // Returns true if there is currently a globally-registered factory.
   static bool has_factory() {
     return !!factory_;
   }
 
  protected:
   RenderViewHostFactory() {}
   virtual ~RenderViewHostFactory() {}
 
   // You can derive from this class and specify an implementation for this
   // function to create a different kind of RenderViewHost for testing.
   virtual RenderViewHost* CreateRenderViewHost(
       SiteInstance* instance,
       RenderViewHostDelegate* delegate,
-      int routing_id) = 0;
+      int routing_id,
+      int64 session_storage_namespace_id) = 0;
 
   // Registers your factory to be called when new RenderViewHosts are created.
   // We have only one global factory, so there must be no factory registered
   // before the call. This class does NOT take ownership of the pointer.
   static void RegisterFactory(RenderViewHostFactory* factory);
 
   // Unregister the previously registered factory. With no factory registered,
   // the default RenderViewHosts will be created.
   static void UnregisterFactory();
 
  private:
   // The current globally registered factory. This is NULL when we should
   // create the default RenderViewHosts.
   static RenderViewHostFactory* factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostFactory);
 };
 
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_