Add ability to open/close ash desktop via hot dogs.

chrome/browser/ui/ash/ash_util.cc

Index: chrome/browser/ui/ash/ash_util.cc
diff --git a/chrome/browser/ui/ash/ash_util.cc b/chrome/browser/ui/ash/ash_util.cc
index 021f62b8c38feccddc81a98f48967663c40e1ed1..488cc4c3f8cef178575b9d5369410285ff35d061 100644
--- a/chrome/browser/ui/ash/ash_util.cc
+++ b/chrome/browser/ui/ash/ash_util.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/ash/ash_util.h"
 
 #include "ash/shell.h"
+#include "chrome/browser/ui/ash/ash_init.h"
 #include "ui/aura/root_window.h"
 
 namespace chrome {
@@ -34,4 +35,11 @@ bool IsNativeWindowInAsh(gfx::NativeWindow native_window) {
   return IsNativeViewInAsh(native_window);
 }
 
+void ToggleAshDesktop() {
+  if (!ash::Shell::HasInstance())
+    OpenAsh();
+  else
+    CloseAsh();
+}
+
 }  // namespace chrome