GN: Add mojo_shell_tests, get more things working on android

third_party/zlib/BUILD.gn

 # Copyright (c) 2013 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.
 
 config("zlib_config") {
   include_dirs = [ "." ]
 }
 
 static_library("zlib") {
   if (!is_win) {
@@ skipping 66 matching lines @@
     cflags = [ "-Wno-parentheses-equality" ]
   }
 
   deps = [ ":zlib" ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
   direct_dependent_configs = [ ":zlib_config" ]
 }
 
-if (!is_android) {
-  static_library("zip") {
-    sources = [
-      "google/zip.cc",
-      "google/zip.h",
-      "google/zip_internal.cc",
-      "google/zip_internal.h",
-      "google/zip_reader.cc",
-      "google/zip_reader.h",
-    ]
-    deps = [
-      ":minizip",
-      "//base",
-    ]
-  }
+static_library("zip") {
+  sources = [
+    "google/zip.cc",
+    "google/zip.h",
+    "google/zip_internal.cc",
+    "google/zip_internal.h",
+    "google/zip_reader.cc",
+    "google/zip_reader.h",
+  ]
+  deps = [
+    ":minizip",
+    "//base",
+  ]
 }