GN: Fix nacl_defines used in chrome/browser

components/nacl/nacl_defines.gni

Index: components/nacl/nacl_defines.gni
diff --git a/components/nacl/nacl_defines.gni b/components/nacl/nacl_defines.gni
new file mode 100644
index 0000000000000000000000000000000000000000..ab9d645c4d13cfde270d8d8ea7bacd00baf075b1
--- /dev/null
+++ b/components/nacl/nacl_defines.gni
@@ -0,0 +1,66 @@
+# Copyright 2014 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.
+
+nacl_defines = []
+if (is_win) {
+  nacl_defines += [
+    "NACL_WINDOWS=1",
+    "NACL_LINUX=0",
+    "NACL_OSX=0",
+    "NACL_ANDROID=0",
+  ]
+} else if (is_linux) {
+  nacl_defines += [
+    "NACL_WINDOWS=0",
+    "NACL_LINUX=1",
+    "NACL_OSX=0",
+    "NACL_ANDROID=0",
+  ]
+} else if (is_mac) {
+  nacl_defines += [
+    "NACL_WINDOWS=0",
+    "NACL_LINUX=0",
+    "NACL_OSX=1",
+    "NACL_ANDROID=0",
+  ]
+}
+
+if (is_android) {
+  nacl_defines += [
+    "NACL_WINDOWS=0",
+    "NACL_LINUX=1",
+    "NACL_OSX=0",
+    "NACL_ANDROID=1",
+  ]
+}
+
+if (cpu_arch == "x86") {
+  nacl_defines += [
+    "NACL_TARGET_SUBARCH=32",
+    "NACL_TARGET_ARCH=x86",
+    "NACL_BUILD_SUBARCH=32",
+    "NACL_BUILD_ARCH=x86",
+  ]
+} else if (cpu_arch == "x64") {
+  nacl_defines += [
+    "NACL_TARGET_SUBARCH=64",
+    "NACL_TARGET_ARCH=x86",
+    "NACL_BUILD_SUBARCH=64",
+    "NACL_BUILD_ARCH=x86",
+  ]
+} else if (cpu_arch == "arm") {
+  nacl_defines += [
+    "NACL_BUILD_ARCH=arm",
+    "NACL_BUILD_SUBARCH=32",
+    "NACL_TARGET_ARCH=arm",
+    "NACL_TARGET_SUBARCH=32",
+  ]
+} else if (cpu_arch == "mipsel") {
+  nacl_defines += [
+    "NACL_BUILD_ARCH=mips",
+    "NACL_BUILD_SUBARCH=32",
+    "NACL_TARGET_ARCH=mips",
+    "NACL_TARGET_SUBARCH=32",
+  ]
+}