Fix app shim focus.

apps/app_shim/extension_app_shim_handler_mac_unittest.cc

Index: apps/app_shim/extension_app_shim_handler_mac_unittest.cc
diff --git a/apps/app_shim/extension_app_shim_handler_mac_unittest.cc b/apps/app_shim/extension_app_shim_handler_mac_unittest.cc
index ca8ccc3af7cb1ce6e236b6063a9f5cbf6264c49c..33941de7402a297d5f88d0efc5599d6125549f4a 100644
--- a/apps/app_shim/extension_app_shim_handler_mac_unittest.cc
+++ b/apps/app_shim/extension_app_shim_handler_mac_unittest.cc
@@ -214,8 +214,10 @@ TEST_F(ExtensionAppShimHandlerTest, LaunchAndCloseShim) {
   handler_->OnShimLaunch(&host_bb_, normal_launch);
   EXPECT_EQ(&host_bb_, handler_->FindHost(&profile_b_, kTestAppIdB));
 
-  // Activation when there is a registered shim finishes launch with success.
+  // Activation when there is a registered shim finishes launch with success and
+  // focuses the app.
   EXPECT_CALL(host_aa_, OnAppLaunchComplete(APP_SHIM_LAUNCH_SUCCESS));
+  EXPECT_CALL(*handler_, OnShimFocus(&host_aa_, APP_SHIM_FOCUS_NORMAL));
   handler_->OnAppActivated(&profile_a_, kTestAppIdA);
 
   // Starting and closing a second host just focuses the app.