Clean up source_site_instance usage in Navigator::RequestOpenURL.

content/browser/frame_host/navigator.h

 // 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "content/browser/frame_host/navigator_delegate.h"
@@ skipping 97 matching lines @@
   virtual base::TimeTicks GetCurrentLoadStart();
 
   // The RenderFrameHostImpl has received a request to open a URL with the
   // specified |disposition|.
   virtual void RequestOpenURL(
       RenderFrameHostImpl* render_frame_host,
       const GURL& url,
       bool uses_post,
       const scoped_refptr<ResourceRequestBodyImpl>& body,
       const std::string& extra_headers,
-      SiteInstance* source_site_instance,
       const Referrer& referrer,
       WindowOpenDisposition disposition,
       bool should_replace_current_entry,
       bool user_gesture) {}
 
   // The RenderFrameHostImpl wants to transfer the request to a new renderer.
   // |redirect_chain| contains any redirect URLs (excluding |url|) that happened
   // before the transfer.  If |method| is "POST", then |post_body| needs to
   // specify the request body, otherwise |post_body| should be null.
   virtual void RequestTransferURL(
@@ skipping 66 matching lines @@
   virtual void DiscardPendingEntryIfNeeded(NavigationHandleImpl* handle) {}
 
  protected:
   friend class base::RefCounted<Navigator>;
   virtual ~Navigator() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_H_