[Android] Fix gn build for instrumentation tests.

build/android/pylib/device/commands/BUILD.gn

+# 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.
+
+import("//build/config/android/rules.gni")
+
+group("commands") {
+  datadeps = [
+    ":chromium_commands",
+    ":copy_chromium_commands",
+  ]
+}
+
+# GYP: //build/android/pylib/device/commands/commands.gyp:chromium_commands

[jbudorick, 2014/10/30 21:05:26]

nit: add a reference comment in the gyp file.

[qsr, 2014/10/31 09:15:01]

Done.

+android_library("chromium_commands") {
+  java_files = [
+    "java/src/org/chromium/android/commands/unzip/Unzip.java",
+  ]
+}
+
+copy("copy_chromium_commands") {
+  sources = [ "$target_gen_dir/chromium_commands.dex.jar" ]
+  outputs = [ "$root_build_dir/chromium_commands.dex.jar" ]
+}