Add hooks to PDFium PostScript code

pdf/pdf.cc

 // Copyright (c) 2010 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.
 
 #include "pdf/pdf.h"
 
 #include <stdint.h>
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 105 matching lines @@
 }
 
 void SetPDFEnsureTypefaceCharactersAccessible(
     PDFEnsureTypefaceCharactersAccessible func) {
   PDFEngineExports::Get()->SetPDFEnsureTypefaceCharactersAccessible(func);
 }
 
 void SetPDFUseGDIPrinting(bool enable) {
   PDFEngineExports::Get()->SetPDFUseGDIPrinting(enable);
 }
+
+void SetPDFPostscriptPrintingLevel(int postscript_level) {
+  PDFEngineExports::Get()->SetPDFPostscriptPrintingLevel(postscript_level);
+}
 #endif  // defined(OS_WIN)
 
 bool GetPDFDocInfo(const void* pdf_buffer,
                    int buffer_size,
                    int* page_count,
                    double* max_page_width) {
   if (!g_sdk_initialized_via_pepper) {
     if (!InitializeSDK())
       return false;
   }
@@ skipping 42 matching lines @@
       autorotate);
   bool ret = engine_exports->RenderPDFPageToBitmap(
       pdf_buffer, pdf_buffer_size, page_number, settings, bitmap_buffer);
   if (!g_sdk_initialized_via_pepper)
     ShutdownSDK();
 
   return ret;
 }
 
 }  // namespace chrome_pdf