Move ash_util functions from 'chrome' namespace to 'ash_util' namespace

chrome/browser/chromeos/options/network_config_view.cc

Index: chrome/browser/chromeos/options/network_config_view.cc
diff --git a/chrome/browser/chromeos/options/network_config_view.cc b/chrome/browser/chromeos/options/network_config_view.cc
index 923e95c70206711092299882c78c96405a260e7f..d8e41e195e95d90a2e4efa9c7e14ab2acf5b4a66 100644
--- a/chrome/browser/chromeos/options/network_config_view.cc
+++ b/chrome/browser/chromeos/options/network_config_view.cc
@@ -55,7 +55,7 @@ gfx::NativeWindow GetParentForUnhostedDialog() {
     // TODO(jamescook): LoginDisplayHost has the wrong native window in mash.
     // This will fix itself when mash converts from ui::Window to aura::Window.
     // http://crbug.com/659155
-    if (!chrome::IsRunningInMash())
+    if (!ash_util::IsRunningInMash())
       return LoginDisplayHost::default_host()->GetNativeWindow();
   } else {
     Browser* browser = chrome::FindTabbedBrowser(