Implement <appview>

chrome/browser/guest_view/app_view/app_view_constants.cc

Index: chrome/browser/guest_view/app_view/app_view_constants.cc
diff --git a/chrome/browser/guest_view/app_view/app_view_constants.cc b/chrome/browser/guest_view/app_view/app_view_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6c718447b3536e0a13fa0d28eb1176e6893e1358
--- /dev/null
+++ b/chrome/browser/guest_view/app_view/app_view_constants.cc
@@ -0,0 +1,13 @@
+// Copyright 2014 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 "chrome/browser/guest_view/app_view/app_view_constants.h"
+
+namespace appview {
+
+const char kAppID[] = "appId";
+const char kEmbedderExtensionID[] ="embedderExtensionId";
+const char kGuestInstanceID[] = "guestInstanceId";
+
+}  // namespace appview