Use ASCII strings for switch names.

net/tools/dump_cache/dump_cache.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.
 
 // This command-line program dumps the contents of a set of cache files, either
 // to stdout or to another set of cache files.
 
 #include <stdio.h>
 #include <string>
 
@@ skipping 39 matching lines @@
 // Dumps all entries to stdout.
 const wchar_t kDumpContents[] = L"dump-contents";
 
 // Convert the cache to files.
 const wchar_t kDumpToFiles[] = L"dump-to-files";
 
 // Upgrade an old version to the current one.
 const wchar_t kUpgrade[] = L"upgrade";
 
 // Internal use:
-const wchar_t kSlave[] = L"slave";
-const wchar_t kPipe[] = L"pipe";
+const char kSlave[] = "slave";
+const char kPipe[] = "pipe";
 
 int Help() {
   printf("warning: input files are modified by this tool\n");
   printf("dump_cache --input=path1 [--output=path2]\n");
   printf("--dump-headers: display file headers\n");
   printf("--dump-contents: display all entries\n");
   printf("--upgrade: copy contents to the output path\n");
   printf("--dump-to-files: write the contents of the cache to files\n");
   return INVALID_ARGUMENT;
 }
@@ skipping 100 matching lines @@
     Sleep(500);
     return ALL_GOOD;
   }
 
   if (command_line.HasSwitch(kDumpContents))
     return DumpContents(input_path);
   if (command_line.HasSwitch(kDumpHeaders))
     return DumpHeaders(input_path);
   return Help();
 }