M56: Make printing work for PDF and Flash.

chrome/browser/printing/print_view_manager.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 CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
 
 #include "base/macros.h"
 #include "chrome/browser/printing/print_view_manager_base.h"
 #include "content/public/browser/web_contents_user_data.h"
@@ skipping 25 matching lines @@
 #endif  // ENABLE_BASIC_PRINTING
 
   // Initiate print preview of the current document by first notifying the
   // renderer. Since this happens asynchronous, the print preview dialog
   // creation will not be completed on the return of this function. Returns
   // false if print preview is impossible at the moment.
   bool PrintPreviewNow(content::RenderFrameHost* rfh, bool has_selection);
 
   // Notify PrintViewManager that print preview is starting in the renderer for
   // a particular WebNode.
-  void PrintPreviewForWebNode();
+  void PrintPreviewForWebNode(content::RenderFrameHost* rfh);
 
   // Notify PrintViewManager that print preview has finished. Unfreeze the
   // renderer in the case of scripted print preview.
   void PrintPreviewDone();
 
   // content::WebContentsObserver implementation.
   void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override;
   void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
   bool OnMessageReceived(const IPC::Message& message,
                          content::RenderFrameHost* render_frame_host) override;
@@ skipping 29 matching lines @@
 
   // Keeps track of the pending callback during scripted print preview.
   content::RenderProcessHost* scripted_print_preview_rph_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintViewManager);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_