diff -r 000000000000 -r 6474c204b198 security/sandbox/linux/android_ucontext.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security/sandbox/linux/android_ucontext.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+// Copyright (c) 2013 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.
+
+/* This file has been imported from
+ * http://git.chromium.org/gitweb/?p=chromium.git;a=blob_plain;f=sandbox/linux/services/android_ucontext.h;hb=99b3e83972e478a42fa72da1ffefee58413e87d4
+ */
+
+#ifndef SANDBOX_LINUX_SERVICES_ANDROID_UCONTEXT_H_
+#define SANDBOX_LINUX_SERVICES_ANDROID_UCONTEXT_H_
+
+#if defined(__ANDROID__)
+
+#if defined(__arm__)
+#include "android_arm_ucontext.h"
+#elif defined(__i386__)
+#include "android_i386_ucontext.h"
+#else
+#error "No support for your architecture in Android header"
+#endif
+
+#else  // __ANDROID__
+#error "Android header file included on non Android."
+#endif  // __ANDROID__
+
+#endif  // SANDBOX_LINUX_SERVICES_ANDROID_UCONTEXT_H_