Remove the tracing cache backend.

net/disk_cache/cache_creator.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 "base/files/file_path.h"
 #include "base/metrics/field_trial.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "net/base/cache_type.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/blockfile/backend_impl.h"
 #include "net/disk_cache/cache_util.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/disk_cache/memory/mem_backend_impl.h"
 #include "net/disk_cache/simple/simple_backend_impl.h"
 
-#ifdef USE_TRACING_CACHE_BACKEND
-#include "net/disk_cache/tracing_cache_backend.h"
-#endif
-
 namespace {
 
 // Builds an instance of the backend depending on platform, type, experiments
 // etc. Takes care of the retry state. This object will self-destroy when
 // finished.
 class CacheCreator {
  public:
   CacheCreator(const base::FilePath& path,
                bool force,
                int max_bytes,
@@ skipping 155 matching lines @@
                                            backend_type,
                                            kNone,
                                            thread,
                                            net_log,
                                            backend,
                                            callback);
   return creator->Run();
 }
 
 }  // namespace disk_cache