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

chrome/browser/chromeos/extensions/wallpaper_private_api.cc

Index: chrome/browser/chromeos/extensions/wallpaper_private_api.cc
diff --git a/chrome/browser/chromeos/extensions/wallpaper_private_api.cc b/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
index 852a8269cdefb054828c98c679399e786c75f4f0..ee1e5d7e246e034b150c4d5c7e5e3dd6c9735020 100644
--- a/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
+++ b/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
@@ -173,7 +173,7 @@ WindowStateManager* g_window_state_manager = NULL;
 // static
 void WindowStateManager::MinimizeInactiveWindows(
     const std::string& user_id_hash) {
-  if (chrome::IsRunningInMash()) {
+  if (ash_util::IsRunningInMash()) {
     NOTIMPLEMENTED();
     return;
   }
@@ -186,7 +186,7 @@ void WindowStateManager::MinimizeInactiveWindows(
 
 // static
 void WindowStateManager::RestoreWindows(const std::string& user_id_hash) {
-  if (chrome::IsRunningInMash()) {
+  if (ash_util::IsRunningInMash()) {
     NOTIMPLEMENTED();
     return;
   }