NOT FOR REVIEW: Aura on Android

chrome/browser/download/download_commands.cc

 // Copyright 2015 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 "chrome/browser/download/download_commands.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_crx_util.h"
 #include "chrome/browser/download/download_extensions.h"
@@ skipping 214 matching lines @@
   return browser_displayer.browser();
 }
 
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
 bool DownloadCommands::IsDownloadPdf() const {
   base::FilePath path = download_item_->GetTargetFilePath();
   return path.MatchesExtension(FILE_PATH_LITERAL(".pdf"));
 }
 #endif
 
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
 bool DownloadCommands::CanOpenPdfInSystemViewer() const {
 #if defined(OS_WIN)
   bool is_adobe_pdf_reader_up_to_date = false;
   if (IsDownloadPdf() && IsAdobeReaderDefaultPDFViewer()) {
     is_adobe_pdf_reader_up_to_date =
         DownloadTargetDeterminer::IsAdobeReaderUpToDate();
   }
   return IsDownloadPdf() &&
          (IsAdobeReaderDefaultPDFViewer() ? is_adobe_pdf_reader_up_to_date
                                           : true);
 #elif defined(OS_MACOSX) || defined(OS_LINUX)
   return IsDownloadPdf();
 #endif
 }
+#endif  // #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)