GN Windows build fixes

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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 745 matching lines @@
 
     if (enable_nacl) {
       deps += [ "//components/nacl:nacl_loader_unittests" ]  # PASSES 3/28/2015
     }
   }
 } else if (is_win) {
   group("windows_default_tests") {
     testonly = true
     deps = [
       "//ash:ash_unittests",  # FAILS 4/20/2015
-      "//base:base_unittests",  # PASSES 4/17/2015 in 32-bit, some 64-bit failures.
+      "//base:base_unittests",  # PASSES 4/20/2015
       "//cc:cc_unittests",  # PASSES 4/17/2015
       "//chrome_elf:chrome_elf_unittests",  # FAILS 4/20/2015
       "//chrome/test:browser_tests",
       "//chrome/test:interactive_ui_tests",
       "//chrome/test:sync_integration_tests",  # Note: need to turn off incremental linking for debug.
       "//chrome/test:unit_tests",
       "//chrome/test/chromedriver:chromedriver_unittests",  # PASSES 4/20/2015
       "//components:components_browsertests",
       "//components:components_unittests",  # PASSES 4/17/2015
       "//courgette:courgette_unittests",  # PASSES 4/20/2015
@@ skipping 44 matching lines @@
       "//url:url_unittests",  # PASSES 4/17/2015
 
       # TODO(GYP) installer_util_unittests
       # TODO(GYP) app_installer_unittests
       # TODO(GYP) nacl_integration
       # TODO(GYP) telemetry_perf_unittests
       # TODO(GYP) telemetry_unittests
     ]
   }
 }