Convert WindowOpenDisposition to an enum class.

pdf/pdfium/pdfium_engine.cc

 // 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.
 
 #include "pdf/pdfium/pdfium_engine.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 3539 matching lines @@
                                           FPDF_WIDESTRING value,
                                           FPDF_DWORD valueLen,
                                           FPDF_BOOL is_focus) {
   // Do nothing for now.
   // TODO(gene): use this signal to trigger OSK.
 }
 
 void PDFiumEngine::Form_DoURIAction(FPDF_FORMFILLINFO* param,
                                     FPDF_BYTESTRING uri) {
   PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
-  engine->client_->NavigateTo(std::string(uri), CURRENT_TAB);
+  engine->client_->NavigateTo(std::string(uri),
+                              WindowOpenDisposition::CURRENT_TAB);
 }
 
 void PDFiumEngine::Form_DoGoToAction(FPDF_FORMFILLINFO* param,
                                      int page_index,
                                      int zoom_mode,
                                      float* position_array,
                                      int size_of_array) {
   PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
   engine->ScrollToPage(page_index);
 }
@@ skipping 400 matching lines @@
   FPDF_DOCUMENT doc =
       FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, nullptr);
   if (!doc)
     return false;
   bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0;
   FPDF_CloseDocument(doc);
   return success;
 }
 
 }  // namespace chrome_pdf