Change FileStream to use FilePath instead of wstring.

chrome/common/unzip.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 "chrome/common/unzip.h"
 
 #include "base/file_util.h"
 #include "base/string_util.h"
 #include "net/base/file_stream.h"
 #include "third_party/zlib/contrib/minizip/unzip.h"
@@ skipping 44 matching lines @@
     return true;
   }
   // TODO(erikkay): Can we always count on the directory entry coming before a
   // file in that directory?  If so, then these three lines can be removed.
   FilePath dir = dest_file.DirName();
   if (!file_util::CreateDirectory(dir))
     return false;
 
   net::FileStream stream;
   int flags = base::PLATFORM_FILE_CREATE_ALWAYS | base::PLATFORM_FILE_WRITE;
-  if (stream.Open(dest_file.ToWStringHack(), flags) != 0)
+  if (stream.Open(dest_file, flags) != 0)
     return false;
 
   bool ret = true;
   int num_bytes = 0;
   char buf[kUnzipBufSize];
   do {
     num_bytes = unzReadCurrentFile(zip_file, buf, kUnzipBufSize);
     if (num_bytes < 0) {
       // If num_bytes < 0, then it's a specific UNZ_* error code.
       // While we're not currently handling these codes specifically, save
@@ skipping 116 matching lines @@
         LOG(WARNING) << "error %d in unzGoToNextFile";
         ret = false;
         break;
       }
     }
   }
   unzClose(zip_file);
   return ret;
 }