Cleanup: Consolidate declarations of XDG variables.

content/shell/shell_browser_context.cc

Index: content/shell/shell_browser_context.cc
===================================================================
--- content/shell/shell_browser_context.cc	(revision 141792)
+++ content/shell/shell_browser_context.cc	(working copy)
@@ -29,15 +29,6 @@
 
 namespace content {
 
-namespace {
-
-#if defined(OS_LINUX)
-const char kDotConfigDir[] = ".config";
-const char kXdgConfigHomeEnvVar[] = "XDG_CONFIG_HOME";
-#endif
-
-}  // namespace
-
 ShellBrowserContext::ShellBrowserContext() {
   InitWhileIOAllowed();
 }
@@ -60,9 +51,10 @@
   path_ = path_.Append(std::wstring(L"content_shell"));
 #elif defined(OS_LINUX)
   scoped_ptr<base::Environment> env(base::Environment::Create());
-  FilePath config_dir(base::nix::GetXDGDirectory(env.get(),
-                                                 kXdgConfigHomeEnvVar,
-                                                 kDotConfigDir));
+  FilePath config_dir(
+      base::nix::GetXDGDirectory(env.get(),
+                                 base::nix::kXdgConfigHomeEnvVar,
+                                 base::nix::kDotConfigDir));
   path_ = config_dir.Append("content_shell");
 #elif defined(OS_MACOSX)
   CHECK(PathService::Get(base::DIR_APP_DATA, &path_));