Add script to validate installed Android SDK packages

build/secondary/third_party/android_tools/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")
 
 config("cpu_features_include") {
   include_dirs = [ "ndk/sources/android/cpufeatures" ]
 }
 
@@ skipping 68 matching lines @@
   ]
   jar_path = "$android_sdk_root/extras/android/support/v7/recyclerview/libs/android-support-v7-recyclerview.jar"
 }
 
 android_resources("google_play_services_default_resources") {
   v14_skip = true
   resource_dirs = [ "$android_sdk_root/extras/google/google_play_services/libproject/google-play-services_lib/res" ]
   custom_package = "com.google.android.gms"
 }
 android_java_prebuilt("google_play_services_default_java") {
   deps = [

[dgn, 2015/06/11 16:23:30]

gyp check: https://codereview.appspot.com/243130043

     ":android_support_v13_java",
     ":google_play_services_default_resources",
+    ":check_sdk_extras_version",
   ]
   jar_path = "$android_sdk_root/extras/google/google_play_services/libproject/google-play-services_lib/libs/google-play-services.jar"
 }
+action("check_sdk_extras_version") {
+  script = "//build/check_sdk_extras_version.py"
+  args = [
+    "--package-id",
+    "extra-google-google_play_services",
+    "--package-location",
+    rebase_path("$android_sdk_root/extras/google/google_play_services"),
+    "--stamp",
+    rebase_path("$target_gen_dir/checked_sdk_extras_version.stamp"),
+  ]
+  inputs = [
+    "//build/android_sdk_extras.json",
+    "$android_sdk_root/extras/google/google_play_services/libproject/google-play-services_lib/libs/google-play-services.jar",
+  ]
+  outputs = [
+    "$target_gen_dir/checked_sdk_extras_version.stamp",
+  ]
+}