Safe numeric library: base/numerics (copied from Chromium)

webrtc/base/numerics/BUILD.gn

Index: webrtc/base/numerics/BUILD.gn
diff --git a/BUILD.gn b/webrtc/base/numerics/BUILD.gn
similarity index 54%
copy from BUILD.gn
copy to webrtc/base/numerics/BUILD.gn
index b7f7a0619a9a73591c070aee611224ec6a544f79..d3edd1f91e68fb0dda2242db242c440d004728b3 100644
--- a/BUILD.gn
+++ b/webrtc/base/numerics/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
+# Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
@@ -6,9 +6,12 @@
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
-# This file is copied and modified from Chromium (src/BUILD.gn).
-group("root") {
-  deps = [
-    "//webrtc",
+# GYP version: webrtc/base/numerics/safe_numerics.gyp:safe_numerics
+source_set("safe_numerics") {
+  sources = [
+    "safe_conversions.h",
+    "safe_conversions_impl.h",
+    "safe_math.h",
+    "safe_math_impl.h",
   ]
 }