Add ErrorConsole UI for Extension Install Warnings

extensions/common/manifest_constants.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/common/manifest_constants.h"
 
 namespace extensions {
 
 namespace manifest_keys {
 
@@ skipping 130 matching lines @@
 const char kTtsVoicesLang[] = "lang";
 const char kTtsVoicesVoiceName[] = "voice_name";
 const char kType[] = "type";
 const char kUpdateURL[] = "update_url";
 const char kVersion[] = "version";
 const char kWebAccessibleResources[] = "web_accessible_resources";
 const char kWebURLs[] = "app.urls";
 
 }  // namespace manifest_keys
 
+namespace manifest_errors {
+
+const char kPermissionUnknownOrMalformed[] =
+    "Permission '*' is unknown or URL pattern is malformed.";
+const char kUnrecognizedManifestKey[] = "Unrecognized manifest key '*'.";
+
+}  // namespace manifest_errors
+
 }  // namespace extensions