Clean up a few more unused globals.

chrome/browser/ui/webui/extensions/extension_error_handler.cc

Index: chrome/browser/ui/webui/extensions/extension_error_handler.cc
diff --git a/chrome/browser/ui/webui/extensions/extension_error_handler.cc b/chrome/browser/ui/webui/extensions/extension_error_handler.cc
index f89feb4bdcf84f3d004c0a3fa069b2a3e39fe0d7..c537365bfe2e4c8aeec496527c3c3cd789b4239b 100644
--- a/chrome/browser/ui/webui/extensions/extension_error_handler.cc
+++ b/chrome/browser/ui/webui/extensions/extension_error_handler.cc
@@ -26,17 +26,10 @@
 
 namespace extensions {
 
-namespace {
-
 // Keys for objects passed to and from extension error UI.
-const char kFileTypeKey[] = "fileType";
-const char kManifestFileType[] = "manifest";
 const char kPathSuffixKey[] = "pathSuffix";
-const char kSourceFileType[] = "source";
 const char kTitleKey[] = "title";
 
-}  // namespace
-
 ExtensionErrorHandler::ExtensionErrorHandler(Profile* profile)
     : profile_(profile) {
 }