From 002407fe456424685619a6434cf9728a3dea2d62 Mon Sep 17 00:00:00 2001
From: Jim Mathies <jmathies@mozilla.com>
Date: Tue, 1 Mar 2016 12:48:26 -0600
Subject: [PATCH] Bug 1232181 - Add a few win resource helpers. r=aklotz

---
 xpcom/base/nsWindowsHelpers.h | 76 +++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/xpcom/base/nsWindowsHelpers.h b/xpcom/base/nsWindowsHelpers.h
index 448654440a77..552e74f47401 100644
--- a/xpcom/base/nsWindowsHelpers.h
+++ b/xpcom/base/nsWindowsHelpers.h
@@ -49,6 +49,78 @@ public:
   }
 };
 
+template<>
+class nsAutoRefTraits<HDC>
+{
+public:
+  typedef HDC RawRef;
+  static HDC Void()
+  {
+    return nullptr;
+  }
+
+  static void Release(RawRef aFD)
+  {
+    if (aFD != Void()) {
+      ::DeleteDC(aFD);
+    }
+  }
+};
+
+template<>
+class nsAutoRefTraits<HBRUSH>
+{
+public:
+  typedef HBRUSH RawRef;
+  static HBRUSH Void()
+  {
+    return nullptr;
+  }
+
+  static void Release(RawRef aFD)
+  {
+    if (aFD != Void()) {
+      ::DeleteObject(aFD);
+    }
+  }
+};
+
+template<>
+class nsAutoRefTraits<HRGN>
+{
+public:
+  typedef HRGN RawRef;
+  static HRGN Void()
+  {
+    return nullptr;
+  }
+
+  static void Release(RawRef aFD)
+  {
+    if (aFD != Void()) {
+      ::DeleteObject(aFD);
+    }
+  }
+};
+
+template<>
+class nsAutoRefTraits<HBITMAP>
+{
+public:
+  typedef HBITMAP RawRef;
+  static HBITMAP Void()
+  {
+    return nullptr;
+  }
+
+  static void Release(RawRef aFD)
+  {
+    if (aFD != Void()) {
+      ::DeleteObject(aFD);
+    }
+  }
+};
+
 template<>
 class nsAutoRefTraits<SC_HANDLE>
 {
@@ -140,6 +212,10 @@ public:
 };
 
 typedef nsAutoRef<HKEY> nsAutoRegKey;
+typedef nsAutoRef<HDC> nsAutoHDC;
+typedef nsAutoRef<HBRUSH> nsAutoBrush;
+typedef nsAutoRef<HRGN> nsAutoRegion;
+typedef nsAutoRef<HBITMAP> nsAutoBitmap;
 typedef nsAutoRef<SC_HANDLE> nsAutoServiceHandle;
 typedef nsAutoRef<HANDLE> nsAutoHandle;
 typedef nsAutoRef<HMODULE> nsModuleHandle;