Add initial prototype for the GN meta-buildsystem.

tools/gn/config_values.cc

Index: tools/gn/config_values.cc
diff --git a/ui/keyboard/resources/webui/api_adapter.js b/tools/gn/config_values.cc
similarity index 62%
copy from ui/keyboard/resources/webui/api_adapter.js
copy to tools/gn/config_values.cc
index 1d24ba68bc2b80322c0a45cc3b66118dab793e44..53466dfd79180b8c211b9d9202a1db73b9166f36 100644
--- a/ui/keyboard/resources/webui/api_adapter.js
+++ b/tools/gn/config_values.cc
@@ -2,6 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-function insertText(text) {
-  chrome.send('insertText', [ text ]);
+#include "tools/gn/config_values.h"
+
+ConfigValues::ConfigValues() {
+}
+
+ConfigValues::~ConfigValues() {
 }