DirectWrite font host for skia.
https://codereview.appspot.com/5417063/


git-svn-id: http://skia.googlecode.com/svn/trunk@5128 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/utils/win/SkHRESULT.h b/include/utils/win/SkHRESULT.h
index ff596c7..9738f74 100644
--- a/include/utils/win/SkHRESULT.h
+++ b/include/utils/win/SkHRESULT.h
@@ -36,6 +36,7 @@
 In variants ending with 'M' the given message will be traced when FAILED.
 The HR variants will return the HRESULT when FAILED.
 The HRB variants will return false when FAILED.
+The HRN variants will return NULL when FAILED.
 The HRV variants will simply return when FAILED.
 */
 #define HR(ex) HR_GENERAL(ex, NULL, _hr)
@@ -44,6 +45,9 @@
 #define HRB(ex) HR_GENERAL(ex, NULL, false)
 #define HRBM(ex, msg) HR_GENERAL(ex, msg, false)
 
+#define HRN(ex) HR_GENERAL(ex, NULL, NULL)
+#define HRNM(ex, msg) HR_GENERAL(ex, msg, NULL)
+
 #define HRV(ex) HR_GENERAL(ex, NULL, )
 #define HRVM(ex, msg) HR_GENERAL(ex, msg, )
 //@}