Convert BlockFiles to use FilePath instead of wstring.

net/disk_cache/disk_cache_perftest.cc

 // Copyright (c) 2006-2008 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 <string>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/perftimer.h"
@@ skipping 189 matching lines @@
 // Creating and deleting "entries" on a block-file is something quite frequent
 // (after all, almost everything is stored on block files). The operation is
 // almost free when the file is empty, but can be expensive if the file gets
 // fragmented, or if we have multiple files. This test measures that scenario,
 // by using multiple, highly fragmented files.
 TEST_F(DiskCacheTest, BlockFilesPerformance) {
   MessageLoopForIO message_loop;
 
   ScopedTestCache test_cache;
 
-  disk_cache::BlockFiles files(test_cache.path_wstring());
+  disk_cache::BlockFiles files(test_cache.path());
   ASSERT_TRUE(files.Init(true));
 
   int seed = static_cast<int>(Time::Now().ToInternalValue());
   srand(seed);
 
   const int kNumEntries = 60000;
   disk_cache::Addr* address = new disk_cache::Addr[kNumEntries];
 
   PerfTimeLogger timer1("Fill three block-files");
 
@@ skipping 13 matching lines @@
 
     files.DeleteBlock(address[entry], false);
     EXPECT_TRUE(files.CreateBlock(disk_cache::RANKINGS, BlockSize(),
                                   &address[entry]));
   }
 
   timer2.Done();
   MessageLoop::current()->RunAllPending();
   delete[] address;
 }