SimpleCache: read small files all at once.

net/disk_cache/disk_cache_test_base.h

 // 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.
 
 #ifndef NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_
 #define NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
+#include "base/metrics/field_trial.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/threading/thread.h"
 #include "net/base/cache_type.h"
 #include "net/disk_cache/disk_cache.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 namespace net {
 
 class IOBuffer;
 
@@ skipping 157 matching lines @@
   bool first_cleanup_;
   bool integrity_;
   bool use_current_thread_;
   // This is intentionally left uninitialized, to be used by any test.
   bool success_;
 
  private:
   void InitMemoryCache();
   void InitDiskCache();
 
+  // Need to have the one "global" trial list before we change things.
+  std::unique_ptr<base::FieldTrialList> field_trial_list_;
+  base::test::ScopedFeatureList scoped_feature_list_;
+
   base::Thread cache_thread_;
   DISALLOW_COPY_AND_ASSIGN(DiskCacheTestWithCache);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_