Use TestDiscardableMemoryAllocator in filter_fuzz_stub.

skia/skia.gyp

 # 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.
 
 {
   'conditions': [
     # In component mode (shared_lib), we build all of skia as a single DLL.
     # However, in the static mode, we need to build skia as multiple targets
     # in order to support the use case where a platform (e.g. Android) may
     # already have a copy of skia as a system library.
@@ skipping 119 matching lines @@
       ],
       'sources': [
         'ext/image_operations_bench.cc',
       ],
     },
     {
       'target_name': 'filter_fuzz_stub',
       'type': 'executable',
       'dependencies': [
         '../base/base.gyp:base',
+        '../base/base.gyp:test_support_base',
         'skia.gyp:skia',
       ],
       'sources': [
         'tools/filter_fuzz_stub/filter_fuzz_stub.cc',
       ],
       'includes': [
         '../build/android/increase_size_for_speed.gypi',
       ],
     },
   ],
 }