Fix SessionStorage confusion between RenderViewHostImpl and NavigationController.

content/browser/web_contents/interstitial_page_impl.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_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 111 matching lines @@
                                WebKit::WebPopupType popup_type) OVERRIDE;
   virtual void CreateNewFullscreenWidget(int route_id) OVERRIDE;
   virtual void ShowCreatedWindow(int route_id,
                                  WindowOpenDisposition disposition,
                                  const gfx::Rect& initial_pos,
                                  bool user_gesture) OVERRIDE;
   virtual void ShowCreatedWidget(int route_id,
                                  const gfx::Rect& initial_pos) OVERRIDE;
   virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE;
 
+  virtual SessionStorageNamespace* GetSessionStorageNamespace(
+      SiteInstance* instance) OVERRIDE;
+
   // RenderWidgetHostDelegate implementation:
   virtual void RenderWidgetDeleted(
       RenderWidgetHostImpl* render_widget_host) OVERRIDE;
   virtual bool PreHandleKeyboardEvent(
       const NativeWebKeyboardEvent& event,
       bool* is_keyboard_shortcut) OVERRIDE;
   virtual void HandleKeyboardEvent(
       const NativeWebKeyboardEvent& event) OVERRIDE;
 #if defined(OS_WIN) && defined(USE_AURA)
   virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE;
@@ skipping 92 matching lines @@
 
   // Settings passed to the renderer.
   mutable RendererPreferences renderer_preferences_;
 
   bool create_view_;
 
   scoped_ptr<InterstitialPageDelegate> delegate_;
 
   base::WeakPtrFactory<InterstitialPageImpl> weak_ptr_factory_;
 
+  scoped_refptr<SessionStorageNamespace> session_storage_namespace_;
+
   DISALLOW_COPY_AND_ASSIGN(InterstitialPageImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_