Add dependency on Android tools to native unittests APKs targets

tools/android/android_tools.gyp

 # Copyright (c) 2012 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.
 
 {
   'targets': [
+    # Intermediate target grouping the android tools needed to run native
+    # unittests apks.
     {
-      'target_name': 'guava_javalib',
+      'target_name': 'android_tools',
       'type': 'none',
-      'variables': {
-        'package_name': '<(_target_name)',
-        'java_in_dir': 'src/guava',
-      },
       'dependencies': [
-        '../../third_party/jsr-305/jsr-305.gyp:jsr_305_javalib',
+        'fake_dns/fake_dns.gyp:fake_dns',
+        'forwarder2/forwarder.gyp:forwarder2',
+        'md5sum/md5sum.gyp:md5sum',
       ],
-      'includes': [ '../../build/java.gypi' ],
     },
   ],
 }