Extracting NetLog inner classes into their own classes.

content/public/test/test_file_error_injector.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 "content/public/test/test_file_error_injector.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "content/browser/download/download_file_factory.h"
 #include "content/browser/download/download_file_impl.h"
 #include "content/browser/download/download_interrupt_reasons_impl.h"
 #include "content/browser/download/download_manager_impl.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "url/gurl.h"
 
+namespace net {
+class NetLogWithSource;
+}
+
 namespace content {
 class ByteStreamReader;
 
 namespace {
 
 // A class that performs file operations and injects errors.
 class DownloadFileWithError: public DownloadFileImpl {
  public:
   DownloadFileWithError(std::unique_ptr<DownloadSaveInfo> save_info,
                         const base::FilePath& default_download_directory,
@@ skipping 368 matching lines @@
     case FILE_OPERATION_RENAME_ANNOTATE:
       return "RENAME_ANNOTATE";
     default:
       break;
   }
 
   return "Unknown";
 }
 
 }  // namespace content