Fix dump_file_system compilation on Windows.

storage/browser/fileapi/dump_file_system.cc

 // Copyright (c) 2013 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.
 //
 // A tool to dump HTML5 filesystem from CUI.
 //
 // Usage:
 //
 // ./out/Release/dump_file_system [options] <filesystem dir> [origin]...
 //
@@ skipping 33 matching lines @@
 #include "storage/browser/fileapi/sandbox_directory_database.h"
 #include "storage/browser/fileapi/sandbox_file_system_backend.h"
 #include "storage/browser/fileapi/sandbox_origin_database.h"
 #include "storage/browser/fileapi/sandbox_prioritized_origin_database.h"
 #include "storage/common/fileapi/file_system_types.h"
 #include "storage/common/fileapi/file_system_util.h"
 
 namespace {
 
 bool g_opt_long;
-const char* g_opt_fs_type = "p";
+const base::FilePath::CharType* g_opt_fs_type = FILE_PATH_LITERAL("p");
 
 void ShowMessageAndExit(const std::string& msg) {
   fprintf(stderr, "%s\n", msg.c_str());
   exit(EXIT_FAILURE);
 }
 
 void ShowUsageAndExit(const std::string& arg0) {
   ShowMessageAndExit(
       "Usage: " + arg0 +
       " [-l] [-t] [-s] <filesystem dir> [origin]...");
@@ skipping 116 matching lines @@
   std::string username = "Default";
   while (true) {
     if (argc < 2)
       ShowUsageAndExit(arg0);
 
     if (std::string(argv[1]) == "-l") {
       g_opt_long = true;
       argc--;
       argv++;
     } else if (std::string(argv[1]) == "-t") {
-      g_opt_fs_type = "t";
+      g_opt_fs_type = FILE_PATH_LITERAL("t");
       argc--;
       argv++;
     } else if (std::string(argv[1]) == "-s") {
-      g_opt_fs_type = "s";
+      g_opt_fs_type = FILE_PATH_LITERAL("s");
       argc--;
       argv++;
     } else {
       break;
     }
   }
 
   if (argc < 2)
     ShowUsageAndExit(arg0);
 
   const base::FilePath file_system_dir = storage::StringToFilePath(argv[1]);
   if (!base::DirectoryExists(file_system_dir)) {
     ShowMessageAndExit(storage::FilePathToString(file_system_dir) +
                        " is not a filesystem directory");
   }
 
   if (argc == 2) {
     storage::DumpFileSystem(file_system_dir);
   } else {
     for (int i = 2; i < argc; i++) {
       storage::DumpOrigin(file_system_dir, argv[i]);
     }
   }
   return 0;
 }