Stop leaking temp directories in SkyShell

sky/shell/BUILD.gn

 # Copyright 2015 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.
 
 common_deps = [
   "//base",
   "//base:i18n",
   "//build/config/sanitizers:deps",
   "//dart/runtime:libdart",
   "//mojo/common",
@@ skipping 82 matching lines @@
              ":jni_headers",
              ":common",
            ]
   }
 
   android_library("java") {
     java_files = [
       "android/org/domokit/sky/shell/GestureProvider.java",
       "android/org/domokit/sky/shell/PlatformServiceProvider.java",
       "android/org/domokit/sky/shell/PlatformViewAndroid.java",
+      "android/org/domokit/sky/shell/ResourceCleaner.java",
       "android/org/domokit/sky/shell/ResourceExtractor.java",
       "android/org/domokit/sky/shell/ServiceFactory.java",
       "android/org/domokit/sky/shell/ServiceRegistry.java",
       "android/org/domokit/sky/shell/SkyActivity.java",
       "android/org/domokit/sky/shell/SkyApplication.java",
       "android/org/domokit/sky/shell/SkyMain.java",
       "android/org/domokit/sky/shell/TracingController.java",
     ]
 
     deps = [
@@ skipping 77 matching lines @@
     ]
 
     deps = common_deps + [
              ":common",
              "//sky/services/testing:interfaces",
            ]
   }
 } else {
   assert(false, "Unsupported platform")
 }