Simple fallback implementation.

chrome/chrome_android.gypi

 # 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.
 {
   'variables': {
     'chromium_code': 1,
     'package_name': 'chromium_testshell',
   },
   'includes': [
     'chrome_android_paks.gypi', # Included for the list of pak resources.
   ],
   'targets': [
     {
       'target_name': 'libchromiumtestshell',
       'type': 'shared_library',
       'dependencies': [
         '../base/base.gyp:base',
         'chrome_android_core',
-        'chrome_android_auxiliary',
         'chromium_testshell_jni_headers',
         'chrome.gyp:browser_ui',
         '../content/content.gyp:content_app_browser',
       ],
       'sources': [
         # This file must always be included in the shared_library step to ensure
         # JNI_OnLoad is exported.
         'app/android/chrome_jni_onload.cc',
         'android/testshell/chrome_main_delegate_testshell_android.cc',
         'android/testshell/chrome_main_delegate_testshell_android.h',
@@ skipping 80 matching lines @@
       ],
       'include_dirs': [
         '..',
         '<(SHARED_INTERMEDIATE_DIR)/android',
         '<(SHARED_INTERMEDIATE_DIR)/chrome',
         '<(android_ndk_include)',
       ],
       'sources': [
         'app/android/chrome_android_initializer.cc',
         'app/android/chrome_android_initializer.h',
-        'app/android/chrome_data_reduction_proxy_android.cc',
-        'app/android/chrome_data_reduction_proxy_android.h',
         'app/android/chrome_main_delegate_android.cc',
         'app/android/chrome_main_delegate_android.h',
         'app/chrome_main_delegate.cc',
         'app/chrome_main_delegate.h',
       ],
       'link_settings': {
         'libraries': [
           '-landroid',
           '-ljnigraphics',
         ],
       },
     },
     {
-       'target_name': 'chrome_android_auxiliary',
-       'type': 'static_library',
-       'include_dirs': [
-         '<(SHARED_INTERMEDIATE_DIR)/chromium_testshell',
-       ],
-       'sources': [
-         'android/testshell/chrome_data_reduction_proxy_testshell_android.cc',
-       ],
-       'dependencies': [
-         '../base/base.gyp:base',
-       ],
-    },
-    {
       'target_name': 'chromium_testshell_paks',
       'type': 'none',
       'dependencies': [
         '<(DEPTH)/chrome/chrome_resources.gyp:packed_resources',
         '<(DEPTH)/chrome/chrome_resources.gyp:packed_extra_resources',
       ],
       'copies': [
         {
           'destination': '<(chrome_android_pak_output_folder)',
           'files': [
             '<@(chrome_android_pak_input_resources)',
           ],
         }
       ],
     },
   ],
 }