Start migrating the disk cache to using FilePath.

net/tools/dump_cache/upgrade.cc

 // Copyright (c) 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 "base/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/io_buffer.h"
 #include "net/disk_cache/backend_impl.h"
 #include "net/disk_cache/entry_impl.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_response_headers.h"
@@ skipping 279 matching lines @@
   }
 }
 
 bool MasterSM::DoInit() {
   DEBUGMSG("Master DoInit\n");
   DCHECK(state_ == MASTER_INITIAL);
 
   if (dump_to_disk_) {
     writer_ = new DiskDumper(path_);
   } else {
-    cache_.reset(new disk_cache::BackendImpl(path_));
+    cache_.reset(new disk_cache::BackendImpl(FilePath::FromWStringHack(path_)));
     if (!cache_->Init()) {
       printf("Unable to initialize new files\n");
       return false;
     }
     writer_ = new CacheDumper(cache_.get());
   }
   if (!writer_)
     return false;
 
   copied_entries_ = 0;
@@ skipping 187 matching lines @@
   printf("Unexpected failure\n");
   SendQuit();
 }
 
 // -----------------------------------------------------------------------
 
 class SlaveSM : public BaseSM {
  public:
   SlaveSM(const std::wstring& path, HANDLE channel)
       : BaseSM(channel), iterator_(NULL) {
-    cache_.reset(new disk_cache::BackendImpl(path));
+    cache_.reset(new disk_cache::BackendImpl(FilePath::FromWStringHack(path)));
     if (!cache_->Init()) {
       printf("Unable to open cache files\n");
       return;
     }
     cache_->SetUpgradeMode();
   }
   virtual ~SlaveSM();
 
   bool DoInit();
   virtual void OnIOCompleted(MessageLoopForIO::IOContext* context,
@@ skipping 296 matching lines @@
 
   SlaveSM slave(input_path, pipe);
   if (!slave.DoInit()) {
     printf("Unable to talk with the main process\n");
     return -1;
   }
 
   loop.Run();
   return 0;
 }