[android_webview] Do not extract webviewchromium.pak

build/android/gyp/package_resources.py

 #!/usr/bin/env python
 #
 # Copyright 2014 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.
 
 # pylint: disable=C0301
 """Package resources into an apk.
 
 See https://android.googlesource.com/platform/tools/base/+/master/legacy/ant-tasks/src/main/java/com/android/ant/AaptExecTask.java
@@ skipping 81 matching lines @@
 
   with build_utils.TempDir() as temp_dir:
     package_command = [aapt,
                        'package',
                        '--version-code', options.version_code,
                        '--version-name', options.version_name,
                        '-M', options.android_manifest,
                        '--no-crunch',
                        '-f',
                        '--auto-add-overlay',
+                       '-0', 'pak',
 
                        '-I', android_jar,
                        '-F', options.apk_path,
                        ]
 
     if os.path.exists(options.asset_dir):
       package_command += ['-A', options.asset_dir]
 
     dep_zips = build_utils.ParseGypList(options.resource_zips)
     for z in dep_zips:
       subdir = os.path.join(temp_dir, os.path.basename(z))
       if os.path.exists(subdir):
         raise Exception('Resource zip name conflict: ' + os.path.basename(z))
       build_utils.ExtractAll(z, path=subdir)
       MoveImagesToNonMdpiFolders(subdir)
       package_command += ['-S', subdir]
 
     if 'Debug' in options.configuration_name:
       package_command += ['--debug-mode']
 
     build_utils.CheckOutput(
         package_command, print_stdout=False, print_stderr=False)
 
 
 if __name__ == '__main__':
   main()