Clean up remaining unused globals (on mac).

chrome/browser/safe_browsing/safe_browsing_store_file_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 "chrome/browser/safe_browsing/safe_browsing_store_file.h"
 
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/md5.h"
 #include "chrome/browser/safe_browsing/safe_browsing_store_unittest_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 namespace {
 
-const base::FilePath::CharType kFolderPrefix[] =
-    FILE_PATH_LITERAL("SafeBrowsingTestStoreFile");
-
 class SafeBrowsingStoreFileTest : public PlatformTest {
  public:
   virtual void SetUp() {
     PlatformTest::SetUp();
 
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
     filename_ = temp_dir_.path();
     filename_ = filename_.AppendASCII("SafeBrowsingTestStore");
 
@@ skipping 158 matching lines @@
     EXPECT_GE(fputs("hello", file.get()), 0);
   }
   ASSERT_TRUE(store_->BeginUpdate());
   EXPECT_FALSE(corruption_detected_);
   EXPECT_FALSE(store_->CheckValidity());
   EXPECT_TRUE(corruption_detected_);
   EXPECT_TRUE(store_->CancelUpdate());
 }
 
 }  // namespace