Android: Do not build any extensions code except for extensions_constants.

chrome/chrome_repack_resources.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.
 {
   'action_name': 'repack_resources',
   'variables': {
     'pak_inputs': [
       '<(SHARED_INTERMEDIATE_DIR)/chrome/chrome_unscaled_resources.pak',
       '<(SHARED_INTERMEDIATE_DIR)/components/components_resources.pak',
       '<(SHARED_INTERMEDIATE_DIR)/net/net_resources.pak',
@@ skipping 13 matching lines @@
       ['chromeos==1', {
         'pak_inputs': [
           '<(SHARED_INTERMEDIATE_DIR)/ui/file_manager/file_manager_resources.pak',
         ],
       }],
       ['OS != "ios"', {
         'pak_inputs': [
           '<(SHARED_INTERMEDIATE_DIR)/blink/public/resources/blink_resources.pak',
           '<(SHARED_INTERMEDIATE_DIR)/content/browser/tracing/tracing_resources.pak',
           '<(SHARED_INTERMEDIATE_DIR)/content/content_resources.pak',
-          '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_renderer_resources.pak',
-          '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_resources.pak',
         ],
       }],
       ['OS != "ios" and OS != "android"', {
         # New paks should be added here by default.
         'pak_inputs': [
           '<(SHARED_INTERMEDIATE_DIR)/webkit/devtools_resources.pak',
           '<(grit_out_dir)/component_extension_resources.pak',
           '<(grit_out_dir)/options_resources.pak',
           '<(grit_out_dir)/quota_internals_resources.pak',
           '<(grit_out_dir)/sync_file_system_internals_resources.pak',
         ],
       }],
       ['enable_extensions==1', {
         'pak_inputs': [
+          '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_renderer_resources.pak',
+          '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_resources.pak',
           '<(grit_out_dir)/extensions_api_resources.pak',
         ],
       }],
     ],
   },
   'includes': [ '../build/repack_action.gypi' ],
 }