Run the disk cache tests in scoped temporary directories instead of a fixed directory so that they …

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 "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/scoped_temp_dir.h"
 #include "base/threading/thread.h"
 #include "net/base/cache_type.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 namespace net {
 
 class IOBuffer;
 
 }  // namespace net
@@ skipping 20 matching lines @@
   bool CopyTestCache(const std::string& name);
 
   // Deletes the contents of |cache_path_|.
   bool CleanupCacheDir();
 
   virtual void TearDown() OVERRIDE;
 
   FilePath cache_path_;
 
  private:
+  ScopedTempDir temp_dir_;
   scoped_ptr<MessageLoop> message_loop_;
 };
 
 // Provides basic support for cache related tests.
 class DiskCacheTestWithCache : public DiskCacheTest {
  protected:
   DiskCacheTestWithCache();
   virtual ~DiskCacheTestWithCache();
 
   void InitCache();
@@ skipping 97 matching lines @@
  private:
   void InitMemoryCache();
   void InitDiskCache();
   void InitDiskCacheImpl();
 
   base::Thread cache_thread_;
   DISALLOW_COPY_AND_ASSIGN(DiskCacheTestWithCache);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_