Pass the RenderProcessHost id on retargeting.

chrome/browser/tab_contents/retargeting_details.h

 // Copyright (c) 2011 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_TAB_CONTENTS_RETARGETING_DETAILS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RETARGETING_DETAILS_H_
 
 #include <stdint.h>
 
 #include "url/gurl.h"
 
 namespace content {
 class WebContents;
 }
 
 // Details sent for NOTIFICATION_RETARGETING.
 struct RetargetingDetails {
   // The source tab contents.
   content::WebContents* source_web_contents;
 
+  // The RenderProcessHost id of the source render frame from which the
+  // retargeting was triggered.
+  int source_render_process_id;
+
   // The routing id of the source render frame from which the retargeting was
   // triggered.
   int64_t source_render_frame_id;
 
   // The target URL.
   GURL target_url;
 
   // The target tab contents.
   content::WebContents* target_web_contents;
 
   // True if the target_web_contents is not yet inserted into a tab strip.
   bool not_yet_in_tabstrip;
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RETARGETING_DETAILS_H_