Clean up remaining unused globals (on mac).

net/tools/dump_cache/dump_cache.cc

 // Copyright (c) 2012 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 14 matching lines @@
 
 enum Errors {
   GENERIC = -1,
   ALL_GOOD = 0,
   INVALID_ARGUMENT = 1,
   FILE_ACCESS_ERROR,
   UNKNOWN_VERSION,
   TOOL_NOT_FOUND,
 };
 
+#if defined(OS_WIN)
 const char kUpgradeHelp[] =
     "\nIn order to use the upgrade function, a version of this tool that\n"
     "understands the file format of the files to upgrade is needed. For\n"
     "instance, to upgrade files saved with file format 3.4 to version 5.2,\n"
     "a version of this program that was compiled with version 3.4 has to be\n"
     "located beside this executable, and named dump_cache_3.exe, and this\n"
     "executable should be compiled with version 5.2 being the current one.";
+#endif  // defined(OS_WIN)
 
 // Folders to read and write cache files.
 const char kInputPath[] = "input";
 const char kOutputPath[] = "output";
 
 // Dumps the file headers to stdout.
 const char kDumpHeaders[] = "dump-headers";
 
 // Dumps all entries to stdout.
 const char kDumpContents[] = "dump-contents";
 
 // Convert the cache to files.
 const char kDumpToFiles[] = "dump-to-files";
 
 // Upgrade an old version to the current one.
 const char kUpgrade[] = "upgrade";
 
 // Internal use:
 const char kSlave[] = "slave";
+#if defined(OS_WIN)
 const char kPipe[] = "pipe";
+#endif  // defined(OS_WIN)
 
 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 102 matching lines @@
   }
 
   if (command_line.HasSwitch(kDumpContents))
     return DumpContents(input_path);
 
   if (command_line.HasSwitch(kDumpHeaders))
     return DumpHeaders(input_path);
 
   return Help();
 }