Propagate opener to BackgroundsContents.

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 <stdint.h>
 
 #include <memory>
@@ skipping 644 matching lines @@
   // Returns true if the location bar should be focused by default rather than
   // the page contents. The view calls this function when the tab is focused
   // to see what it should do.
   virtual bool FocusLocationBarByDefault() = 0;
 
   // Does this have an opener (corresponding to window.opener in JavaScript)
   // associated with it?
   virtual bool HasOpener() const = 0;
 
   // Returns the opener if HasOpener() is true, or nullptr otherwise.
-  virtual WebContents* GetOpener() const = 0;
+  virtual RenderFrameHost* GetOpener() const = 0;
 
   // Returns true if this WebContents was opened by another WebContents, even
   // if the opener was suppressed. In contrast to HasOpener/GetOpener, the
   // original opener doesn't reflect window.opener which can be suppressed or
   // updated.
   virtual bool HasOriginalOpener() const = 0;
 
   // Returns the original opener if HasOriginalOpener() is true, or nullptr
   // otherwise.
-  virtual WebContents* GetOriginalOpener() const = 0;
+  virtual RenderFrameHost* GetOriginalOpener() const = 0;
 
   typedef base::Callback<void(
       int, /* id */
       int, /* HTTP status code */
       const GURL&, /* image_url */
       const std::vector<SkBitmap>&, /* bitmaps */
       /* The sizes in pixel of the bitmaps before they were resized due to the
          max bitmap size passed to DownloadImage(). Each entry in the bitmaps
          vector corresponds to an entry in the sizes vector. If a bitmap was
          resized, there should be a single returned bitmap. */
@@ skipping 121 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_