ifdef OS_NAME -> if defined(OS_NAME)

chrome/browser/ui/webui/print_preview/print_preview_handler.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 "chrome/browser/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 
@@ skipping 197 matching lines @@
 
 // Callback that stores a PDF file on disk.
 void PrintToPdfCallback(Metafile* metafile, const base::FilePath& path) {
   metafile->SaveTo(path);
   // |metafile| must be deleted on the UI thread.
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&base::DeletePointer<Metafile>, metafile));
 }
 
-#ifdef OS_CHROMEOS
+#if defined(OS_CHROMEOS)
 void PrintToPdfCallbackWithCheck(Metafile* metafile,
                                  drive::DriveFileError error,
                                  const base::FilePath& path) {
   if (error != drive::DRIVE_FILE_OK) {
     LOG(ERROR) << "Save to pdf failed to write: " << error;
   } else {
     metafile->SaveTo(path);
   }
   // |metafile| must be deleted on the UI thread.
   BrowserThread::PostTask(
@@ skipping 679 matching lines @@
 void PrintPreviewHandler::PostPrintToPdfTask() {
   scoped_refptr<base::RefCountedBytes> data;
   string16 title;
   if (!GetPreviewDataAndTitle(&data, &title)) {
     NOTREACHED() << "Preview data was checked before file dialog.";
     return;
   }
   printing::PreviewMetafile* metafile = new printing::PreviewMetafile;
   metafile->InitFromData(static_cast<const void*>(data->front()), data->size());
   // PrintToPdfCallback takes ownership of |metafile|.
-#ifdef OS_CHROMEOS
+#if defined(OS_CHROMEOS)
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   drive::util::PrepareWritableFileAndRun(
       Profile::FromBrowserContext(preview_web_contents()->GetBrowserContext()),
       *print_to_pdf_path_,
       base::Bind(&PrintToPdfCallbackWithCheck, metafile));
 #else
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&PrintToPdfCallback, metafile,
                                      *print_to_pdf_path_));
 #endif
@@ skipping 35 matching lines @@
     // Nothing to print, no preview available.
     return false;
   }
   DCHECK(tmp_data->size() && tmp_data->front());
 
   *data = tmp_data;
   *title = print_preview_ui->initiator_tab_title();
   return true;
 }