Try to restore window.opener when opening blocked popups

content/public/browser/web_contents.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_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 80 matching lines @@
     gfx::NativeView context;
   };
 
   // Creates a new WebContents.
   CONTENT_EXPORT static WebContents* Create(const CreateParams& params);
 
   // Similar to Create() above but should be used when you need to prepopulate
   // the SessionStorageNamespaceMap of the WebContents. This can happen if
   // you duplicate a WebContents, try to reconstitute it from a saved state,
   // or when you create a new WebContents based on another one (eg., when
-  // servicing a window.open() call).
+  // servicing a window.open() call). If |opener| is non-NULL, the created
+  // WebContents will have its opener set to |opener|.
   //
   // You do not want to call this. If you think you do, make sure you completely
   // understand when SessionStorageNamespace objects should be cloned, why
   // they should not be shared by multiple WebContents, and what bad things
   // can happen if you share the object.
   CONTENT_EXPORT static WebContents* CreateWithSessionStorage(
       const CreateParams& params,
-      const SessionStorageNamespaceMap& session_storage_namespace_map);
+      const SessionStorageNamespaceMap& session_storage_namespace_map,
+      WebContents* opener);
 
   // Adds/removes a callback called on creation of each new WebContents.
   typedef base::Callback<void(WebContents*)> CreatedCallback;
   CONTENT_EXPORT static void AddCreatedCallback(
       const CreatedCallback& callback);
   CONTENT_EXPORT static void RemoveCreatedCallback(
       const CreatedCallback& callback);
 
   // Returns a WebContents that wraps the RenderViewHost, or NULL if the
   // render view host's delegate isn't a WebContents.
@@ skipping 332 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_