--- a/security/sandbox/chromium/base/rand_util_win.cc
+++ b/security/sandbox/chromium/base/rand_util_win.cc
@@ -7,17 +7,17 @@
 #include <windows.h>
 #include <stddef.h>
 #include <stdint.h>
 
 // #define needed to link in RtlGenRandom(), a.k.a. SystemFunction036.  See the
 // "Community Additions" comment on MSDN here:
 // http://msdn.microsoft.com/en-us/library/windows/desktop/aa387694.aspx
 #define SystemFunction036 NTAPI SystemFunction036
-#include <NTSecAPI.h>
+#include <ntsecapi.h>
 #undef SystemFunction036
 
 #include <algorithm>
 #include <limits>
 
 #include "base/logging.h"
 
 namespace base {

--- a/security/sandbox/chromium/base/win/pe_image.h
+++ b/security/sandbox/chromium/base/win/pe_image.h
@@ -12,17 +12,17 @@
 #define BASE_WIN_PE_IMAGE_H_
 
 #include <windows.h>
 
 #if defined(_WIN32_WINNT_WIN8)
 // The Windows 8 SDK defines FACILITY_VISUALCPP in winerror.h.
 #undef FACILITY_VISUALCPP
 #endif
-#include <DelayIMP.h>
+#include <delayimp.h>
 
 namespace base {
 namespace win {
 
 // This class is a wrapper for the Portable Executable File Format (PE).
 // Its main purpose is to provide an easy way to work with imports and exports
 // from a file, mapped in memory as image.
 class PEImage {

--- a/security/sandbox/chromium/sandbox/win/src/acl.h
+++ b/security/sandbox/chromium/sandbox/win/src/acl.h
@@ -1,16 +1,16 @@
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SANDBOX_SRC_ACL_H_
 #define SANDBOX_SRC_ACL_H_
 
-#include <AccCtrl.h>
+#include <accctrl.h>
 #include <windows.h>
 
 #include <memory>
 
 #include "base/memory/free_deleter.h"
 #include "sandbox/win/src/sid.h"
 
 namespace sandbox {

--- a/security/sandbox/chromium/sandbox/win/src/broker_services.cc
+++ b/security/sandbox/chromium/sandbox/win/src/broker_services.cc
@@ -1,15 +1,15 @@
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sandbox/win/src/broker_services.h"
 
-#include <AclAPI.h>
+#include <aclapi.h>
 #include <stddef.h>
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/threading/platform_thread.h"

--- a/security/sandbox/chromium/sandbox/win/src/sandbox_rand.cc
+++ b/security/sandbox/chromium/sandbox/win/src/sandbox_rand.cc
@@ -5,17 +5,17 @@
 #include "sandbox/win/src/sandbox_rand.h"
 
 #include <windows.h>
 
 // #define needed to link in RtlGenRandom(), a.k.a. SystemFunction036.  See the
 // "Community Additions" comment on MSDN here:
 // http://msdn.microsoft.com/en-us/library/windows/desktop/aa387694.aspx
 #define SystemFunction036 NTAPI SystemFunction036
-#include <NTSecAPI.h>
+#include <ntsecapi.h>
 #undef SystemFunction036
 
 namespace sandbox {
 
 bool GetRandom(unsigned int* random_value) {
   return RtlGenRandom(random_value, sizeof(unsigned int)) != FALSE;
 }