Rezip tool used to modify the APK.

build/android/rezip.gyp

Index: build/android/rezip.gyp
diff --git a/components/autocomplete.gypi b/build/android/rezip.gyp
similarity index 56%
copy from components/autocomplete.gypi
copy to build/android/rezip.gyp
index f8d3d148e7ad54b80bf38c39a78e799c350e0c03..b06ac52cb24ccd927e5d08b0ff3eeb113e555d4d 100644
--- a/components/autocomplete.gypi
+++ b/build/android/rezip.gyp
@@ -2,21 +2,22 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+# Build the rezip build tool.
 {
   'targets': [
     {
-      'target_name': 'autocomplete',
-      'type': 'static_library',
+      'target_name': 'rezip',
+      'type': 'executable',
+      'toolsets': [ 'host' ],
       'dependencies': [
-        '../base/base.gyp:base',
+        '<(DEPTH)/third_party/zlib/zlib.gyp:minizip',
       ],
       'include_dirs': [
-        '..',
+        '<(DEPTH)',
       ],
       'sources': [
-        'autocomplete/url_prefix.cc',
-        'autocomplete/url_prefix.h',
+        'rezip/rezip.cc',
       ],
-    },
+    }
   ],
 }