Enable the volume slider in Ash for windows.

chrome/browser/notifications/desktop_notifications_unittest.h

Index: chrome/browser/notifications/desktop_notifications_unittest.h
diff --git a/chrome/browser/notifications/desktop_notifications_unittest.h b/chrome/browser/notifications/desktop_notifications_unittest.h
index 6ecd01eb1c0970194048a494e03ccd1e40c15061..bc1ae1f6a1b5d3a8fbfa62deade28e0285e7287a 100644
--- a/chrome/browser/notifications/desktop_notifications_unittest.h
+++ b/chrome/browser/notifications/desktop_notifications_unittest.h
@@ -21,6 +21,10 @@
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(OS_WIN)

[dewittj, 2014/03/03 22:48:55]

Probably should read:
defined(OS_WIN) && defined(USE_ASH)

+#include "base/win/scoped_com_initializer.h"
+#endif
+
 #if defined(USE_AURA)
 namespace views {
 namespace corewm {
@@ -134,6 +138,9 @@ class DesktopNotificationsTest : public testing::Test {
 #if defined(USE_AURA)
   scoped_ptr<views::corewm::WMState> wm_state_;
 #endif
+#if defined(OS_WIN)

[dewittj, 2014/03/03 22:48:55]

same here

+  scoped_ptr<base::win::ScopedCOMInitializer> com_initializer_;
+#endif
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotificationsTest);
 };