Add guava and jsr-305 to third_party for Android

third_party/jsr-305/jsr-305.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': [
+    {
+      'target_name': 'jsr_305_javalib',
+      'type': 'none',
+      'variables': {
+        'package_name': '<(_target_name)',
+        # The sources are not located in a folder that is called src/, so we
+        # need to set it in additional_src_dirs parameter instead.
+        'java_in_dir': '../../build/android/empty',
+        'additional_src_dirs': [ 'src/ri/' ],
+      },
+      'includes': [ '../../build/java.gypi' ],
+    },
+  ]
+}