Add more components unittests to the GN build.

components/BUILD.gn

Index: components/BUILD.gn
diff --git a/components/BUILD.gn b/components/BUILD.gn
index ac90354b3b42ca2f66cb13f8f649689aec48b750..77110f293751336a34e1b4d757ce36197977a04e 100644
--- a/components/BUILD.gn
+++ b/components/BUILD.gn
@@ -219,25 +219,23 @@ test("components_unittests") {
   # test source set and not here.
   deps = [
     "//components/auto_login_parser:unit_tests",
-    # TODO(GYP) enable the rest of these. Some will likely work, but some
-    # require extra dependencies to link properly.
     "//components/autofill/content/browser:unit_tests",
     "//components/autofill/core/browser:unit_tests",
     "//components/autofill/core/common:unit_tests",
-    #"//components/bookmarks/browser:unit_tests",
-    #"//components/captive_portal:unit_tests",
-    #"//components/cloud_devices/common:unit_tests",
-    #"//components/component_updater:unit_tests",
-    #"//components/content_settings/core/browser:unit_tests",
+    "//components/bookmarks/browser:unit_tests",
+    "//components/captive_portal:unit_tests",
+    "//components/cloud_devices/common:unit_tests",
+    "//components/component_updater:unit_tests",
+    "//components/content_settings/core/browser:unit_tests",
     "//components/content_settings/core/common:unit_tests",
-    #"//components/crx_file:unit_tests",
-    #"//components/data_reduction_proxy/core/browser:unit_tests",
-    #"//components/data_reduction_proxy/core/common:unit_tests",
-    #"//components/dom_distiller/core:unit_tests",
-    #"//components/domain_reliability:unit_tests",
+    "//components/crx_file:unit_tests",
+    "//components/data_reduction_proxy/core/browser:unit_tests",
+    "//components/data_reduction_proxy/core/common:unit_tests",
+    "//components/dom_distiller/core:unit_tests",
+    "//components/domain_reliability:unit_tests",
     "//components/google/core/browser:unit_tests",
-    #"//components/login:unit_tests",
-    #"//components/metrics:unit_tests",
+    "//components/login:unit_tests",
+    "//components/metrics:unit_tests",
     "//components/omnibox:unit_tests",
     "//components/ownership:unit_tests",
     "//components/proximity_auth:unit_tests",