Inside of content, prefer SiteInstanceImpl to SiteInstance.

content/browser/frame_host/interstitial_page_impl.cc

 // Copyright 2013 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.
 
 #include "content/browser/frame_host/interstitial_page_impl.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 545 matching lines @@
   return web_contents_;
 }
 
 RenderViewHostImpl* InterstitialPageImpl::CreateRenderViewHost() {
   if (!enabled())
     return NULL;
 
   // Interstitial pages don't want to share the session storage so we mint a
   // new one.
   BrowserContext* browser_context = web_contents()->GetBrowserContext();
-  scoped_refptr<SiteInstance> site_instance =
-      SiteInstance::Create(browser_context);
+  scoped_refptr<SiteInstanceImpl> site_instance =
+      SiteInstanceImpl::Create(browser_context);
   DOMStorageContextWrapper* dom_storage_context =
       static_cast<DOMStorageContextWrapper*>(
           BrowserContext::GetStoragePartition(
               browser_context, site_instance.get())->GetDOMStorageContext());
   session_storage_namespace_ =
       new SessionStorageNamespaceImpl(dom_storage_context);
 
   // Use the RenderViewHost from our FrameTree.
   // TODO(avi): The view routing ID can be restored to MSG_ROUTING_NONE once
   // RenderViewHostImpl has-a RenderWidgetHostImpl. https://crbug.com/545684
@@ skipping 346 matching lines @@
 void InterstitialPageImpl::UnderlyingContentObserver::NavigationEntryCommitted(
     const LoadCommittedDetails& load_details) {
   interstitial_->OnNavigatingAwayOrTabClosing();
 }
 
 void InterstitialPageImpl::UnderlyingContentObserver::WebContentsDestroyed() {
   interstitial_->OnNavigatingAwayOrTabClosing();
 }
 
 }  // namespace content