1. Adds null check when keymap is failed to load. 2. Moves xkb_rule_names construction into worker …

ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc

Index: ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc
diff --git a/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc b/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc
index 0ae34b6151d95e891416a6bc3f15c2d21217de49..a22a432778e7eb402f56cd3846ab28fb420fdccb 100644
--- a/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc
+++ b/ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc
@@ -808,7 +808,7 @@ TEST_F(XkbLayoutEngineVkTest, XkbRuleNamesForLayoutName) {
     SCOPED_TRACE(i);
     const VkTestXkbKeyboardLayoutEngine::RuleNames* e = &kVkeyTestCase[i];
     scoped_ptr<xkb_rule_names> names =
-        layout_engine_->GetXkbRuleNames(e->layout_name);
+        XkbKeyboardLayoutEngine::GetXkbRuleNames(e->layout_name);
     EXPECT_EQ(names.get()->layout, e->layout);
     EXPECT_EQ(names.get()->variant, e->variant);
   }