Update to NSS 3.15.5 and NSPR 4.10.3.

nspr/pr/src/md/windows/ntmisc.c

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 /* 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/. */
 
 /*
  * ntmisc.c
  *
  */
 
@@ skipping 964 matching lines @@
         }
         PR_SetError(PR_UNKNOWN_ERROR, GetLastError());
     }
     return addr;
 }
 
 PRStatus _MD_MemUnmap(void *addr, PRUint32 len)
 {
     if (UnmapViewOfFile(addr)) {
         return PR_SUCCESS;
-    } else {
-        PR_SetError(PR_UNKNOWN_ERROR, GetLastError());
-        return PR_FAILURE;
     }
+    _PR_MD_MAP_DEFAULT_ERROR(GetLastError());
+    return PR_FAILURE;
 }
 
 PRStatus _MD_CloseFileMap(PRFileMap *fmap)
 {
     CloseHandle(fmap->md.hFileMap);
     PR_DELETE(fmap);
     return PR_SUCCESS;
 }
 
+PRStatus _MD_SyncMemMap(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len)
+{
+    PROsfd osfd = fd->secret->md.osfd;
+
+    /* The FlushViewOfFile page on MSDN says:
+     *  To flush all the dirty pages plus the metadata for the file and
+     *  ensure that they are physically written to disk, call
+     *  FlushViewOfFile and then call the FlushFileBuffers function.
+     */
+    if (FlushViewOfFile(addr, len) && FlushFileBuffers((HANDLE) osfd)) {
+        return PR_SUCCESS;
+    }
+    _PR_MD_MAP_DEFAULT_ERROR(GetLastError());
+    return PR_FAILURE;
+}
+
 /*
  ***********************************************************************
  *
  * Atomic increment and decrement operations for x86 processors
  *
  * We don't use InterlockedIncrement and InterlockedDecrement
  * because on NT 3.51 and Win95, they return a number with
  * the same sign as the incremented/decremented result, rather
  * than the result itself.  On NT 4.0 these functions do return
  * the incremented/decremented result.
@@ skipping 166 matching lines @@
         mov [ebx],eax
 done:   
         }
 #endif /* __GNUC__ */
 }
 #pragma warning(default: 4035)
 
 #endif /* _PR_HAVE_ATOMIC_CAS */
 
 #endif /* x86 processors */