pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/moz.configure

@@ -0,0 +1,85 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+project_flag('MOZ_ANDROID_EXCLUDE_FONTS',
+             help='Whether to exclude font files from the build',
+             default=True)
+
+project_flag('MOZ_LOCALE_SWITCHER',
+             help='Enable runtime locale switching',
+             default=True)
+
+project_flag('MOZ_ANDROID_GCM',
+             help='Enable GCM registration on Nightly builds only',
+             default=True,
+             set_for_old_configure=True)
+
+project_flag('MOZ_ANDROID_DOWNLOADS_INTEGRATION',
+             help='Enable system download manager on Android',
+             default=True)
+
+project_flag('MOZ_ANDROID_BEAM',
+             help='Enable NFC permission on Android',
+             default=True)
+
+project_flag('MOZ_ANDROID_SEARCH_ACTIVITY',
+             help='Include Search Activity on Android',
+             default=True)
+
+project_flag('MOZ_ANDROID_MLS_STUMBLER',
+             help='Include Mozilla Location Service Stumbler on Android',
+             default=True)
+
+project_flag('MOZ_ANDROID_DOWNLOAD_CONTENT_SERVICE',
+             help='Background service for downloading additional content at runtime',
+             default=True)
+
+project_flag('MOZ_ANDROID_CUSTOM_TABS',
+             help='Enable support for Android custom tabs',
+             default=delayed_getattr(milestone, 'is_nightly'))
+
+# Enable the Switchboard A/B framework code.
+# Note: The framework is always included in the app. This flag controls
+# usage of the framework.
+project_flag('MOZ_SWITCHBOARD',
+             help='Include Switchboard A/B framework on Android',
+             default=True)
+
+option(env='MOZ_ANDROID_ACTIVITY_STREAM',
+       help='Enable Activity Stream on Android (replacing the default HomePager)',
+       default=False)
+
+set_config('MOZ_ANDROID_ACTIVITY_STREAM',
+           depends_if('MOZ_ANDROID_ACTIVITY_STREAM')(lambda _: True))
+
+option(env='MOZ_ANDROID_PACKAGE_INSTALL_BOUNCER',
+       help='Build and package the install bouncer APK',
+       default=True)
+
+set_config('MOZ_ANDROID_PACKAGE_INSTALL_BOUNCER',
+           depends_if('MOZ_ANDROID_PACKAGE_INSTALL_BOUNCER')(lambda _: True))
+
+imply_option('MOZ_SERVICES_HEALTHREPORT', True)
+imply_option('MOZ_ANDROID_HISTORY', True)
+
+set_config('ANDROID_SUPPORT_LIBRARY_VERSION', '23.4.0')
+add_old_configure_assignment('ANDROID_SUPPORT_LIBRARY_VERSION', '23.4.0')
+
+set_config('ANDROID_GOOGLE_PLAY_SERVICES_VERSION', '8.4.0')
+add_old_configure_assignment('ANDROID_GOOGLE_PLAY_SERVICES_VERSION', '8.4.0')
+
+@depends(target)
+def check_target(target):
+    if target.os != 'Android':
+        log.error('You must specify --target=arm-linux-androideabi (or some '
+                  'other valid Android target) when building mobile/android.')
+        die('See https://developer.mozilla.org/docs/Mozilla/Developer_guide/'
+            'Build_Instructions/Simple_Firefox_for_Android_build '
+            'for more information about the necessary options.')
+
+include('../../toolkit/moz.configure')
+include('../../build/moz.configure/java.configure')
+include('gradle.configure')