Create wrapper scripts that set --output-directory

third_party/android_platform/BUILD.gn

Index: third_party/android_platform/BUILD.gn
diff --git a/third_party/android_platform/BUILD.gn b/third_party/android_platform/BUILD.gn
index f2b3b5d65c92175447c1f51ffd183a70abeb733f..8ca857a3f08ee1ec45aa9bd63c043e87bfe2e5c4 100644
--- a/third_party/android_platform/BUILD.gn
+++ b/third_party/android_platform/BUILD.gn
@@ -3,14 +3,15 @@
 # found in the LICENSE file.
 
 import("//testing/test.gni")
+import("//tools/android/wrapper_script.gni")
 import("config.gni")
 
-gypi_values = exec_script("//build/gypi_to_gn.py",
-                          [ rebase_path("relocation_packer.gyp") ],
-                          "scope",
-                          [ "relocation_packer.gyp" ])
-
 if (current_toolchain == host_toolchain) {
+  gypi_values = exec_script("//build/gypi_to_gn.py",
+                            [ rebase_path("relocation_packer.gyp") ],
+                            "scope",
+                            [ "relocation_packer.gyp" ])
+
   # GYP: //third_party/android_platform/relocation_packer.gyp:android_lib_relocation_packer
   source_set("android_lib_relocation_packer") {
     deps = [
@@ -48,3 +49,7 @@ if (current_toolchain == host_toolchain) {
     sources = gypi_values.relocation_packer_test_sources
   }
 }
+
+wrapper_script("stack_wrapper") {
+  target = "//third_party/android_platform/development/scripts/stack"
+}