Add angle_unittests to ozone tests.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index f5275fa0b16e03965d4fe9aa7958e9cf417daa61..7b671edc81428c3ccc95dde88bd381ddfa68f1b1 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -302,6 +302,8 @@ group("both_gn_and_gyp") {
       "//mojo/edk/test:mojo_public_system_unittests",
       "//net:net_perftests",
       "//services/shell/public/cpp",
+      "//third_party/angle/src/tests:angle_end2end_tests",
+      "//third_party/angle/src/tests:angle_unittests",
       "//third_party/WebKit/Source/platform:blink_platform_unittests",
       "//third_party/WebKit/Source/platform/heap:blink_heap_unittests",
       "//third_party/WebKit/Source/web:webkit_unit_tests",
@@ -533,8 +535,6 @@ group("both_gn_and_gyp") {
       "//ipc:ipc_perftests",
       "//media:media_perftests",
       "//net:dump_cache",
-      "//third_party/angle/src/tests:angle_end2end_tests",
-      "//third_party/angle/src/tests:angle_unittests",
       "//third_party/codesighs:maptsvdifftool",
       "//third_party/libphonenumber:libphonenumber_unittests",
       "//ui/compositor:compositor_unittests",