Move the rest of extension_manifest_constants to top-level extensions/

chrome/common/extensions/manifest_url_handler.cc

Index: chrome/common/extensions/manifest_url_handler.cc
diff --git a/chrome/common/extensions/manifest_url_handler.cc b/chrome/common/extensions/manifest_url_handler.cc
index eb5120165e32806036904f5d1e963e445778baea..d05ee1333c40f7b8c578215ca40c9d6cb27deac5 100644
--- a/chrome/common/extensions/manifest_url_handler.cc
+++ b/chrome/common/extensions/manifest_url_handler.cc
@@ -13,13 +13,13 @@
 #include "base/values.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/extensions/extension_file_util.h"
-#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/permissions/api_permission.h"
 #include "chrome/common/extensions/permissions/api_permission_set.h"
 #include "chrome/common/extensions/permissions/permissions_data.h"
 #include "chrome/common/url_constants.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/manifest.h"
+#include "extensions/common/manifest_constants.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ -27,11 +27,11 @@
 #include "ui/keyboard/keyboard_constants.h"
 #endif
 
-namespace keys = extensions::manifest_keys;
-namespace errors = extension_manifest_errors;
-
 namespace extensions {
 
+namespace keys = manifest_keys;
+namespace errors = manifest_errors;
+
 namespace {
 
 const char kOverrideExtentUrlPatternFormat[] = "chrome://%s/*";