Inside of content, prefer SiteInstanceImpl to SiteInstance.

content/browser/frame_host/render_frame_host_factory.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/render_frame_host_factory.h"
 
 #include "base/logging.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 namespace content {
 
 // static
 RenderFrameHostFactory* RenderFrameHostFactory::factory_ = NULL;
 
 // static
 scoped_ptr<RenderFrameHostImpl> RenderFrameHostFactory::Create(
-    SiteInstance* site_instance,
+    SiteInstanceImpl* site_instance,
     RenderViewHostImpl* render_view_host,
     RenderFrameHostDelegate* delegate,
     RenderWidgetHostDelegate* rwh_delegate,
     FrameTree* frame_tree,
     FrameTreeNode* frame_tree_node,
     int32_t routing_id,
     int32_t widget_routing_id,
     bool hidden) {
   if (factory_) {
     return factory_->CreateRenderFrameHost(
@@ skipping 11 matching lines @@
   factory_ = factory;
 }
 
 // static
 void RenderFrameHostFactory::UnregisterFactory() {
   DCHECK(factory_) << "No factory to unregister.";
   factory_ = NULL;
 }
 
 }  // namespace content