app_list: Split app_list_controller.* into two smaller parts.

chrome/browser/ui/app_list/app_list_util.cc

Index: chrome/browser/ui/app_list/app_list_util.cc
diff --git a/chrome/browser/ui/app_list/app_list_util.cc b/chrome/browser/ui/app_list/app_list_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bda19ce0922853b6386653027dcce8fde4c048a9
--- /dev/null
+++ b/chrome/browser/ui/app_list/app_list_util.cc
@@ -0,0 +1,16 @@
+// Copyright 2012 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/ui/app_list/app_list_util.h"
+
+#include "build/build_config.h"
+
+namespace chrome {
+
+#if defined(OS_CHROMEOS)
+// Default implementation for ports which do not have this implemented.
+void InitAppList() {}
+#endif
+
+}  // namespace chrome