MacViews: Fix ViewTest.HandleAccelerator by faking window activation

ui/views/test/views_test_base.cc

Index: ui/views/test/views_test_base.cc
diff --git a/ui/views/test/views_test_base.cc b/ui/views/test/views_test_base.cc
index 4e1a91563a4ee1d2c5d46bc543f7b6406b91ef8c..2bf942603ad7fa0afb62ba4c440b735a28c56b74 100644
--- a/ui/views/test/views_test_base.cc
+++ b/ui/views/test/views_test_base.cc
@@ -8,6 +8,7 @@
 
 #include "base/run_loop.h"
 #include "ui/base/clipboard/clipboard.h"
+#include "ui/views/test/views_test_helper.h"
 
 namespace views {
 
@@ -49,6 +50,10 @@ void ViewsTestBase::RunPendingMessages() {
   run_loop.RunUntilIdle();
 }
 
+void ViewsTestBase::EnableMacFakeWindowActivation() {
+  test_helper_->views_test_helper()->EnableFakeWindowActivation();
+}
+
 Widget::InitParams ViewsTestBase::CreateParams(
     Widget::InitParams::Type type) {
   Widget::InitParams params(type);