| // Copyright 2021 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef CHROME_BROWSER_PDF_PDF_FRAME_UTIL_H_ | 
 | #define CHROME_BROWSER_PDF_PDF_FRAME_UTIL_H_ | 
 |  | 
 | namespace content { | 
 | class RenderFrameHost; | 
 | }  // namespace content | 
 |  | 
 | namespace pdf_frame_util { | 
 |  | 
 | // Searches the children of the given `rfh` to find a `RenderFrameHost` that | 
 | // hosts PDF content. | 
 | content::RenderFrameHost* FindPdfChildFrame(content::RenderFrameHost* rfh); | 
 |  | 
 | }  // namespace pdf_frame_util | 
 |  | 
 | #endif  // CHROME_BROWSER_PDF_PDF_FRAME_UTIL_H_ |