Add installer_util_unittests to the GN windows build

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index bf50824c428212b803b83d3e28442887abf5381d..157d6195163cb84ad0d2eb8c827d2c2a33e1e45a 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -788,13 +788,14 @@ if (is_linux) {
       "//base:base_unittests",  # PASSES 4/20/2015
       "//cc:cc_unittests",  # PASSES 4/17/2015
       "//chrome_elf:chrome_elf_unittests",  # FAILS 4/20/2015
-      "//chrome/app_installer:app_installer_unittests",
+      "//chrome/app_installer:app_installer_unittests",  # PASSES 4/24/2015
+      "//chrome/installer/util:installer_util_unittests",
       "//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_browsertests",  # PASSES 4/24/2015
       "//components:components_unittests",  # PASSES 4/17/2015
       "//courgette:courgette_unittests",  # PASSES 4/20/2015
       "//content/test:content_browsertests",
@@ -843,8 +844,6 @@ if (is_linux) {
       "//ui/wm:wm_unittests",  # PASSES 4/21/2015
       "//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