1 files changed, 1 insertions, 14 deletions
diff --git a/dom/media/platforms/PDMFactory.cpp b/dom/media/platforms/PDMFactory.cpp
index a72d910f5..c1e58fdc2 100644
--- a/dom/media/platforms/PDMFactory.cpp
+++ b/dom/media/platforms/PDMFactory.cpp
@@ -47,10 +47,6 @@
 #include "MP4Decoder.h"
 #include "mozilla/dom/RemoteVideoDecoder.h"
 
-#ifdef XP_WIN
-#include "mozilla/WindowsVersion.h"
-#endif
-
 #include "mp4_demuxer/H264.h"
 
 namespace mozilla {
@@ -367,16 +363,7 @@ PDMFactory::CreatePDMs()
   }
 #endif
 #ifdef XP_WIN
-  if (MediaPrefs::PDMWMFEnabled() && IsVistaOrLater() && !IsWin7AndPre2000Compatible()) {
-    // *Only* use WMF on Vista and later, as if Firefox is run in Windows 95
-    // compatibility mode on Windows 7 (it does happen!) we may crash trying
-    // to startup WMF. So we need to detect the OS version here, as in
-    // compatibility mode IsVistaOrLater() and friends behave as if we're on
-    // the emulated version of Windows. See bug 1279171.
-    // Additionally, we don't want to start the RemoteDecoderModule if we
-    // expect it's not going to work (i.e. on Windows older than Vista).
-    // IsWin7AndPre2000Compatible() uses GetVersionEx as the user specified OS version can
-    // be reflected when compatibility mode is in effect.
+  if (MediaPrefs::PDMWMFEnabled()) {
     m = new WMFDecoderModule();
     RefPtr<PlatformDecoderModule> remote = new dom::RemoteDecoderModule(m);
     StartupPDM(remote);