Add FPDF_ANNOT in PDFiumEngine::GetRenderingFlags.

pdf/pdfium/pdfium_engine.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 PDF_PDFIUM_PDFIUM_ENGINE_H_
 #define PDF_PDFIUM_PDFIUM_ENGINE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 681 matching lines @@
   // been called. Only after that can we call FORM_DoPageAAction.
   bool called_do_document_action_;
 
   // Records parts of form fields that need to be highlighted at next paint, in
   // screen coordinates.
   std::vector<pp::Rect> form_highlights_;
 
   // Whether to render in grayscale or in color.
   bool render_grayscale_;
 
+  // Whether to render PDF annotations.
+  bool render_annots_;
+
   // The link currently under the cursor.
   std::string link_under_cursor_;
 
   // Pending progressive paints.
   struct ProgressivePaint {
     pp::Rect rect;  // In screen coordinates.
     FPDF_BITMAP bitmap;
     int page_index;
     // Temporary used to figure out if in a series of Paint() calls whether this
     // pending paint was updated or not.
@@ skipping 57 matching lines @@
   bool GetPDFPageSizeByIndex(const void* pdf_buffer,
                              int pdf_buffer_size,
                              int page_number,
                              double* width,
                              double* height) override;
 };
 
 }  // namespace chrome_pdf
 
 #endif  // PDF_PDFIUM_PDFIUM_ENGINE_H_