Change the flag which enables OOP PDF to an enable/disable flag

chrome/common/chrome_content_client.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/common/chrome_content_client.h"
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
@@ skipping 121 matching lines @@
   // but (on Linux) this function is always called once before we're sandboxed.
   // So the first time through test if the file is available and then skip the
   // check on subsequent calls if yes.
   static bool skip_pdf_file_check = false;
   base::FilePath path;
   if (PathService::Get(chrome::FILE_PDF_PLUGIN, &path)) {
     if (skip_pdf_file_check || base::PathExists(path)) {
       content::PepperPluginInfo pdf;
       pdf.path = path;
       pdf.name = ChromeContentClient::kPDFPluginName;
-      if (CommandLine::ForCurrentProcess()->HasSwitch(
-              switches::kOutOfProcessPdf)) {
+      if (switches::OutOfProcessPdfEnabled()) {
         pdf.is_out_of_process = true;
         content::WebPluginMimeType pdf_mime_type(kPDFPluginOutOfProcessMimeType,
                                                  kPDFPluginExtension,
                                                  kPDFPluginDescription);
         pdf.mime_types.push_back(pdf_mime_type);
         // TODO(raymes): Make print preview work with out of process PDF.
       } else {
         content::WebPluginMimeType pdf_mime_type(kPDFPluginMimeType,
                                                  kPDFPluginExtension,
                                                  kPDFPluginDescription);
@@ skipping 381 matching lines @@
     int sandbox_type,
     int* sandbox_profile_resource_id) const {
   DCHECK(sandbox_profile_resource_id);
   if (sandbox_type == NACL_SANDBOX_TYPE_NACL_LOADER) {
     *sandbox_profile_resource_id = IDR_NACL_SANDBOX_PROFILE;
     return true;
   }
   return false;
 }
 #endif