Move the rest of extension_manifest_constants to top-level extensions/

chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc

Index: chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc
diff --git a/chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc b/chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc
index 78318e9076436c6e2baa5262f2aa00dbadec48a2..9e144cad7ce115772c184c685eda4c6d7b1cf8fe 100644
--- a/chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc
+++ b/chrome/common/extensions/manifest_handlers/nacl_modules_handler.cc
@@ -9,13 +9,13 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "extensions/common/error_utils.h"
+#include "extensions/common/manifest_constants.h"
 
 namespace extensions {
 
-namespace keys = extensions::manifest_keys;
-namespace errors = extension_manifest_errors;
+namespace keys = manifest_keys;
+namespace errors = manifest_errors;
 
 namespace {