CommandLine API rework

net/tools/crash_cache/crash_cache.cc

Index: net/tools/crash_cache/crash_cache.cc
diff --git a/net/tools/crash_cache/crash_cache.cc b/net/tools/crash_cache/crash_cache.cc
index df641a215a5c9e405dd431ed20f2b22c9c701e72..9d6f3d630fbcfc69b651481321674b828d8a2192 100644
--- a/net/tools/crash_cache/crash_cache.cc
+++ b/net/tools/crash_cache/crash_cache.cc
@@ -40,14 +40,8 @@ int RunSlave(RankCrashes action) {
   std::wstring exe;
   PathService::Get(base::FILE_EXE, &exe);
 
-#if defined(OS_WIN)
-  CommandLine cmdline(StringPrintf(L"%ls %d", exe.c_str(), action));
-#elif defined(OS_POSIX)
-  std::vector<std::string> cmd_argv;
-  cmd_argv.push_back(WideToUTF8(exe));
-  cmd_argv.push_back(IntToString(action));
-  CommandLine cmdline(cmd_argv);
-#endif
+  CommandLine cmdline(exe);
+  cmdline.AppendLooseValue(ASCIIToWide(IntToString(action)));
 
   base::ProcessHandle handle;
   if (!base::LaunchApp(cmdline, false, false, &handle)) {