GTTF: Make net_unittests run successfully with parallel test launcher

net/disk_cache/disk_cache_test_util.h

 // Copyright (c) 2010 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_UTIL_H_
 #define NET_DISK_CACHE_DISK_CACHE_TEST_UTIL_H_
 #pragma once
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/message_loop.h"
+#include "base/scoped_temp_dir.h"
 #include "base/timer.h"
 #include "build/build_config.h"
 
 // Re-creates a given test file inside the cache test folder.
 bool CreateCacheTestFile(const FilePath& name);
 
 // Deletes all file son the cache.
 bool DeleteCache(const FilePath& path);
 
-// Copies a set of cache files from the data folder to the test folder.
-bool CopyTestCache(const std::string& name);
-
-// Gets the path to the cache test folder.
-FilePath GetCacheFilePath();
+// Copies a set of cache files from the data folder to the destination folder.
+bool CopyTestCache(const std::string& name, const FilePath& destination);
 
 // Fills buffer with random values (may contain nulls unless no_nulls is true).
 void CacheTestFillBuffer(char* buffer, size_t len, bool no_nulls);
 
 // Generates a random key of up to 200 bytes.
 std::string GenerateKey(bool same_length);
 
 // Returns true if the cache is not corrupt.
 bool CheckCacheIntegrity(const FilePath& path, bool new_eviction);
 
 // Helper class which ensures that the cache dir returned by GetCacheFilePath
 // exists and is clear in ctor and that the directory gets deleted in dtor.
 class ScopedTestCache {
  public:
   ScopedTestCache();
-  // Use a specific folder name.
-  explicit ScopedTestCache(const std::string& name);
   ~ScopedTestCache();
 
-  FilePath path() const { return path_; }
+  FilePath path() const { return temp_dir_.path(); }
 
  private:
-  const FilePath path_;  // Path to the cache test folder.
+  ScopedTempDir temp_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedTestCache);
 };
 
 // -----------------------------------------------------------------------
 
 // Simple callback to process IO completions from the cache. It allows tests
 // with multiple simultaneous IO operations.
 class CallbackTest : public CallbackRunner< Tuple1<int> >  {
  public:
@@ skipping 35 matching lines @@
   base::RepeatingTimer<MessageLoopHelper> timer_;
   int num_callbacks_;
   int num_iterations_;
   int last_;
   bool completed_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageLoopHelper);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_UTIL_H_