Avoid double-InitCache() in SimpleDoomBetween test, leak

net/disk_cache/backend_unittest.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/basictypes.h"
 #include "base/file_util.h"
 #include "base/port.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
@@ skipping 2883 matching lines @@
   header.initial_magic_number = GG_UINT64_C(0xbadf00d);
   EXPECT_EQ(
       implicit_cast<int>(sizeof(header)),
       file_util::WriteFile(entry_file1_path, reinterpret_cast<char*>(&header),
                            sizeof(header)));
   ASSERT_EQ(net::ERR_FAILED, OpenEntry(key, &entry));
 }
 
 TEST_F(DiskCacheBackendTest, SimpleDoomRecent) {
   SetSimpleCacheMode();
-  InitCache();
   BackendDoomRecent();
 }
 
 TEST_F(DiskCacheBackendTest, SimpleDoomBetween) {
   SetSimpleCacheMode();
-  InitCache();
   BackendDoomBetween();
 }
 
 #endif  // !defined(OS_WIN)