Add gyp define to enable vulkan debug layers

infra/bots/recipe_modules/skia/fake_specs.py

 # Copyright 2016 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.
 
 # This file is generated by the infra/bots/gen_buildbot_specs.py script.
 
 FAKE_SPECS = {
   'Build-Mac-Clang-Arm7-Debug-Android': {
     'build_targets': [
       'most',
@@ skipping 565 matching lines @@
       'target_arch': 'x86_64',
     },
     'configuration': 'Release_x64',
     'dm_flags': [
       '--dummy-flags',
     ],
     'do_perf_steps': False,
     'do_test_steps': False,
     'env': {
       'GYP_DEFINES':
-          ('qt_sdk=C:/Qt/4.8.5/ skia_arch_type=x86_64 skia_vulkan=1 skia_warn'
-           'ings_as_errors=1 skia_win_debuggers_path=c:/DbgHelp skia_win_ltcg'
-           '=0'),
+          ('qt_sdk=C:/Qt/4.8.5/ skia_arch_type=x86_64 skia_vulkan=1 skia_vulk'
+           'an_debug_layers=0 skia_warnings_as_errors=1 skia_win_debuggers_pa'
+           'th=c:/DbgHelp skia_win_ltcg=0'),
     },
     'nanobench_flags': [
       '--dummy-flags',
     ],
     'upload_dm_results': True,
     'upload_perf_results': False,
   },
   'Housekeeper-Nightly-RecreateSKPs_Canary': {
     'build_targets': [
       'most',
@@ skipping 330 matching lines @@
     },
     'configuration': 'Debug',
     'device_cfg': 'arm64',
     'dm_flags': [
       '--dummy-flags',
     ],
     'do_perf_steps': True,
     'do_test_steps': True,
     'env': {
       'GYP_DEFINES':
-          'skia_arch_type=arm64 skia_vulkan=1 skia_warnings_as_errors=0',
+          ('skia_arch_type=arm64 skia_vulkan=1 skia_vulkan_debug_layers=0 ski'
+           'a_warnings_as_errors=0'),
     },
     'nanobench_flags': [
       '--dummy-flags',
     ],
     'product.board': 'foster',
     'upload_dm_results': True,
     'upload_perf_results': False,
   },
   'Test-Android-GCC-Nexus7-GPU-Tegra3-Arm7-Debug': {
     'build_targets': [
@@ skipping 390 matching lines @@
           ('skia_arch_type=arm skia_clang_build=1 skia_os=ios skia_warnings_a'
            's_errors=0'),
     },
     'nanobench_flags': [
       '--dummy-flags',
     ],
     'upload_dm_results': True,
     'upload_perf_results': False,
   },
 }