Enable PNaCl by default (revert disabling CL)

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/cpu.h"
 #include "base/debug/crash_logging.h"
 #include "base/file_util.h"
@@ skipping 154 matching lines @@
   static bool skip_nacl_file_check = false;
   if (PathService::Get(chrome::FILE_NACL_PLUGIN, &path)) {
     if (skip_nacl_file_check || base::PathExists(path)) {
       content::PepperPluginInfo nacl;
       nacl.path = path;
       nacl.name = chrome::ChromeContentClient::kNaClPluginName;
       content::WebPluginMimeType nacl_mime_type(kNaClPluginMimeType,
                                                 kNaClPluginExtension,
                                                 kNaClPluginDescription);
       nacl.mime_types.push_back(nacl_mime_type);
-      if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnablePnacl)) {
+      if (!CommandLine::ForCurrentProcess()->HasSwitch(
+              switches::kDisablePnacl)) {
         content::WebPluginMimeType pnacl_mime_type(kPnaclPluginMimeType,
                                                    kPnaclPluginExtension,
                                                    kPnaclPluginDescription);
         nacl.mime_types.push_back(pnacl_mime_type);
       }
       nacl.permissions = kNaClPluginPermissions;
       plugins->push_back(nacl);
 
       skip_nacl_file_check = true;
     }
@@ skipping 300 matching lines @@
   }
   return false;
 }
 
 std::string ChromeContentClient::GetCarbonInterposePath() const {
   return std::string(kInterposeLibraryPath);
 }
 #endif
 
 }  // namespace chrome