[WORK_IN_PROGRESS] PDF::Save() fix for out-of-process-pdf.

ppapi/thunk/ppb_pdf_api.h

 // Copyright (c) 2011 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 PPAPI_THUNK_PPB_PDF_API_H_
 #define PPAPI_THUNK_PPB_PDF_API_H_
 
 #include "ppapi/c/private/ppb_pdf.h"
 #include "ppapi/shared_impl/singleton_resource_id.h"
 
 namespace ppapi {
 namespace thunk {
 
 class PPB_PDF_API {
  public:
   virtual PP_Var GetLocalizedString(PP_ResourceString string_id) = 0;
   virtual PP_Resource GetResourceImage(PP_ResourceImage image_id) = 0;
   virtual void SearchString(const unsigned short* input_string,
                             const unsigned short* input_term,
                             bool case_sensitive,
                             PP_PrivateFindResult** results,
                             int* count) = 0;
   virtual void DidStartLoading() = 0;
   virtual void DidStopLoading() = 0;
   virtual void SetContentRestriction(int restrictions) = 0;
   virtual void HistogramPDFPageCount(int count) = 0;
   virtual void UserMetricsRecordAction(const PP_Var& action) = 0;
   virtual void HasUnsupportedFeature() = 0;
-  virtual void SaveAs() = 0;
+  virtual void SaveAs(const PP_Var& url) = 0;
   virtual PP_Bool IsFeatureEnabled(PP_PDFFeature feature) = 0;
   virtual void Print() = 0;
   virtual PP_Resource GetResourceImageForScale(PP_ResourceImage image_id,
                                                float scale) = 0;
   virtual PP_Bool IsOutOfProcess() = 0;
   virtual void SetSelectedText(const char* selected_text) = 0;
   virtual void SetLinkUnderCursor(const char* url) = 0;
 
   static const SingletonResourceID kSingletonResourceID = PDF_SINGLETON_ID;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_PDF_API_H_