the sanitizer builders expect d8 to be build. Make that explicit.

build/all.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.
 
 {
   'variables': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'.
     'app_targets%': [],
     # For Android-specific targets.
@@ skipping 667 matching lines @@
         },  # target_name: chromium_builder_chromedriver
         {
           'target_name': 'chromium_builder_asan',
           'type': 'none',
           'dependencies': [
             '../chrome/chrome.gyp:chrome',
 
             # We refer to content_shell directly rather than blink_tests
             # because we don't want the _unittests binaries.
             '../content/content_shell_and_tests.gyp:content_shell',
+
+            '../v8/src/d8.gyp:d8',
           ],
           'conditions': [
             ['OS!="win"', {
               'dependencies': [
                 '../net/net.gyp:hpack_fuzz_wrapper',
                 '../net/net.gyp:dns_fuzz_stub',
                 '../skia/skia.gyp:filter_fuzz_stub',
               ],
             }],
             ['enable_ipc_fuzzer==1 and component!="shared_library" and '
@@ skipping 642 matching lines @@
           'dependencies': [
             '../ui/views/examples/examples.gyp:views_examples_with_content_exe',
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_unittests',
           ],
         },  # target_name: macviews_builder
       ],  # targets
     }],  # os=='mac' and toolkit_views==1
   ],  # conditions
 }