Hide knowledge of webkit::ppapi::PluginDelegate from chrome. This is part of moving ppapi implement…

chrome/browser/ui/pdf/pdf_tab_helper.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_UI_PDF_PDF_TAB_HELPER_H_
 #define CHROME_BROWSER_UI_PDF_PDF_TAB_HELPER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
@@ skipping 23 matching lines @@
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
 
   // Internal helpers ----------------------------------------------------------
 
   void UpdateLocationBar();
 
   // Message handlers.
-  void OnPDFHasUnsupportedFeature();
+  void OnHasUnsupportedFeature();
+  void OnSaveURLAs(const GURL& url,
+                   const content::Referrer& referrer);
+  void OnUpdateContentRestrictions(int content_restrictions);
 
   // The model for the confirmation prompt to open a PDF in Adobe Reader.
   scoped_ptr<OpenPDFInReaderPromptDelegate> open_in_reader_prompt_;
 
   DISALLOW_COPY_AND_ASSIGN(PDFTabHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_PDF_PDF_TAB_HELPER_H_