4 files changed, 2 insertions, 102 deletions
diff --git a/widget/windows/LSPAnnotator.cpp b/widget/windows/LSPAnnotator.cpp
index de4a40d2a..97f6e5b50 100644
--- a/widget/windows/LSPAnnotator.cpp
+++ b/widget/windows/LSPAnnotator.cpp
@@ -11,11 +11,6 @@
  * on machines with several LSPs.
  */
 
-#if _WIN32_WINNT < 0x0600
-// Redefining _WIN32_WINNT for some Vista APIs that we call
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
-#endif
 #include "nsICrashReporter.h"
 #include "nsISupportsImpl.h"
 #include "nsServiceManagerUtils.h"
diff --git a/widget/windows/WindowsUIUtils.cpp b/widget/windows/WindowsUIUtils.cpp
index 223511859..1c270b5ec 100644
--- a/widget/windows/WindowsUIUtils.cpp
+++ b/widget/windows/WindowsUIUtils.cpp
@@ -5,7 +5,8 @@
 
 #include <windows.h>
 #include <winsdkver.h>
-#include "mozwrlbase.h"
+#include <wrl.h>
+
 #include "nsServiceManagerUtils.h"
 
 #include "WindowsUIUtils.h"
@@ -179,4 +180,3 @@ WindowsUIUtils::UpdateTabletModeState()
 
   return NS_OK;
 }
-
diff --git a/widget/windows/mozwrlbase.h b/widget/windows/mozwrlbase.h
deleted file mode 100644
index d82be8f04..000000000
--- a/widget/windows/mozwrlbase.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#pragma once
-
-/*
- * Includes <wrl.h> and it's children. Defines imports needed by
- * corewrappers.h in the case where windows.h has already been
- * included w/WINVER < 0x600. Also ups WINVER/_WIN32_WINNT prior
- * to including wrl.h. Mozilla's build currently has WINVER set to
- * 0x502 for XP support.
- */
-
-#if _WIN32_WINNT < 0x600
-
-#include <windows.h>
-
-VOID
-WINAPI
-ReleaseSRWLockExclusive(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-VOID
-WINAPI
-ReleaseSRWLockShared(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-BOOL
-WINAPI
-InitializeCriticalSectionEx(
-    _Out_ LPCRITICAL_SECTION lpCriticalSection,
-    _In_ DWORD dwSpinCount,
-    _In_ DWORD Flags
-    );
-
-VOID
-WINAPI
-InitializeSRWLock(
-    _Out_ PSRWLOCK SRWLock
-    );
-
-VOID
-WINAPI
-AcquireSRWLockExclusive(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-BOOLEAN
-WINAPI
-TryAcquireSRWLockExclusive(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-BOOLEAN
-WINAPI
-TryAcquireSRWLockShared(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-VOID
-WINAPI
-AcquireSRWLockShared(
-    _Inout_ PSRWLOCK SRWLock
-    );
-
-#undef WINVER
-#undef _WIN32_WINNT
-#define WINVER 0x600
-#define _WIN32_WINNT 0x600
-
-#endif // _WIN32_WINNT < 0x600
-
-#include <wrl.h>
diff --git a/widget/windows/nsFilePicker.h b/widget/windows/nsFilePicker.h
index 3d692b3d4..740f07a7d 100644
--- a/widget/windows/nsFilePicker.h
+++ b/widget/windows/nsFilePicker.h
@@ -9,17 +9,6 @@
 
 #include <windows.h>
 
-// For Vista IFileDialog interfaces which aren't exposed
-// unless _WIN32_WINNT >= _WIN32_WINNT_LONGHORN.
-#if _WIN32_WINNT < _WIN32_WINNT_LONGHORN
-#define _WIN32_WINNT_bak _WIN32_WINNT
-#undef _WIN32_WINNT
-#define _WIN32_WINNT _WIN32_WINNT_LONGHORN
-#define _WIN32_IE_bak _WIN32_IE
-#undef _WIN32_IE
-#define _WIN32_IE _WIN32_IE_IE70
-#endif
-
 #include "nsIFile.h"
 #include "nsITimer.h"
 #include "nsISimpleEnumerator.h"
@@ -141,11 +130,4 @@ protected:
   DWORD                  mFDECookie;
 };
 
-#if defined(_WIN32_WINNT_bak)
-#undef _WIN32_WINNT
-#define _WIN32_WINNT _WIN32_WINNT_bak
-#undef _WIN32_IE
-#define _WIN32_IE _WIN32_IE_bak
-#endif
-
 #endif // nsFilePicker_h__