chromeos: fix focus for mushrome

ui/aura/test/mus/test_window_tree_client_setup.h

Index: ui/aura/test/mus/test_window_tree_client_setup.h
diff --git a/ui/aura/test/mus/test_window_tree_client_setup.h b/ui/aura/test/mus/test_window_tree_client_setup.h
index 6526aec6f0ee9647b146b7b0740ce9fdaf13abae..5a679eb38f9716bcb15f386b867aa875fcfd355d 100644
--- a/ui/aura/test/mus/test_window_tree_client_setup.h
+++ b/ui/aura/test/mus/test_window_tree_client_setup.h
@@ -11,6 +11,7 @@
 
 namespace aura {
 
+class TestWindowManagerClient;
 class TestWindowTree;
 class WindowManagerDelegate;
 class WindowTreeClient;
@@ -36,6 +37,10 @@ class TestWindowTreeClientSetup {
 
   WindowTreeClient* window_tree_client();
 
+  TestWindowManagerClient* test_window_manager_client() {
+    return test_window_manager_client_.get();
+  }
+
  private:
   // Called by both implementations of init to perform common initialization.
   void CommonInit(WindowTreeClientDelegate* window_tree_delegate,
@@ -45,6 +50,8 @@ class TestWindowTreeClientSetup {
 
   std::unique_ptr<WindowTreeClient> window_tree_client_;
 
+  std::unique_ptr<TestWindowManagerClient> test_window_manager_client_;
+
   DISALLOW_COPY_AND_ASSIGN(TestWindowTreeClientSetup);
 };